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12e364b9 KC |
1 | /* visorchipset_main.c |
2 | * | |
f6d0c1e6 | 3 | * Copyright (C) 2010 - 2013 UNISYS CORPORATION |
12e364b9 KC |
4 | * All rights reserved. |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or (at | |
9 | * your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
14 | * NON INFRINGEMENT. See the GNU General Public License for more | |
15 | * details. | |
16 | */ | |
17 | ||
18 | #include "globals.h" | |
19 | #include "controlvm.h" | |
20 | #include "visorchipset.h" | |
21 | #include "procobjecttree.h" | |
22 | #include "visorchannel.h" | |
23 | #include "periodic_work.h" | |
24 | #include "testing.h" | |
25 | #include "file.h" | |
26 | #include "parser.h" | |
27 | #include "uniklog.h" | |
28 | #include "uisutils.h" | |
29 | #include "guidutils.h" | |
30 | #include "controlvmcompletionstatus.h" | |
31 | #include "guestlinuxdebug.h" | |
32 | #include "filexfer.h" | |
33 | ||
34 | #include <linux/nls.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/platform_device.h> | |
37 | ||
38 | #define CURRENT_FILE_PC VISOR_CHIPSET_PC_visorchipset_main_c | |
39 | #define TEST_VNIC_PHYSITF "eth0" /* physical network itf for | |
40 | * vnic loopback test */ | |
41 | #define TEST_VNIC_SWITCHNO 1 | |
42 | #define TEST_VNIC_BUSNO 9 | |
43 | ||
44 | #define MAX_NAME_SIZE 128 | |
45 | #define MAX_IP_SIZE 50 | |
46 | #define MAXOUTSTANDINGCHANNELCOMMAND 256 | |
47 | #define POLLJIFFIES_CONTROLVMCHANNEL_FAST 1 | |
48 | #define POLLJIFFIES_CONTROLVMCHANNEL_SLOW 100 | |
49 | ||
50 | /* When the controlvm channel is idle for at least MIN_IDLE_SECONDS, | |
51 | * we switch to slow polling mode. As soon as we get a controlvm | |
52 | * message, we switch back to fast polling mode. | |
53 | */ | |
54 | #define MIN_IDLE_SECONDS 10 | |
bd5b9b32 KC |
55 | static ulong Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; |
56 | static ulong Most_recent_message_jiffies; /* when we got our last | |
57 | * controlvm message */ | |
12e364b9 KC |
58 | static inline char * |
59 | NONULLSTR(char *s) | |
60 | { | |
61 | if (s) | |
62 | return s; | |
63 | else | |
64 | return ""; | |
65 | } | |
66 | ||
67 | static int serverregistered; | |
68 | static int clientregistered; | |
69 | ||
70 | #define MAX_CHIPSET_EVENTS 2 | |
71 | static U8 chipset_events[MAX_CHIPSET_EVENTS] = { 0, 0 }; | |
72 | ||
73 | static struct delayed_work Periodic_controlvm_work; | |
74 | static struct workqueue_struct *Periodic_controlvm_workqueue; | |
bd5b9b32 | 75 | static DEFINE_SEMAPHORE(NotifierLock); |
12e364b9 KC |
76 | |
77 | typedef struct { | |
78 | CONTROLVM_MESSAGE message; | |
79 | unsigned int crc; | |
80 | } MESSAGE_ENVELOPE; | |
81 | ||
82 | static CONTROLVM_MESSAGE_HEADER g_DiagMsgHdr; | |
83 | static CONTROLVM_MESSAGE_HEADER g_ChipSetMsgHdr; | |
84 | static CONTROLVM_MESSAGE_HEADER g_DelDumpMsgHdr; | |
85 | static const GUID UltraDiagPoolChannelProtocolGuid = | |
86 | ULTRA_DIAG_POOL_CHANNEL_PROTOCOL_GUID; | |
87 | /* 0xffffff is an invalid Bus/Device number */ | |
88 | static ulong g_diagpoolBusNo = 0xffffff; | |
89 | static ulong g_diagpoolDevNo = 0xffffff; | |
90 | static CONTROLVM_MESSAGE_PACKET g_DeviceChangeStatePacket; | |
91 | ||
92 | /* Only VNIC and VHBA channels are sent to visorclientbus (aka | |
93 | * "visorhackbus") | |
94 | */ | |
95 | #define FOR_VISORHACKBUS(channel_type_guid) \ | |
96 | ((memcmp(&channel_type_guid, &UltraVnicChannelProtocolGuid, \ | |
97 | sizeof(GUID)) == 0) || \ | |
98 | (memcmp(&channel_type_guid, &UltraVhbaChannelProtocolGuid, \ | |
99 | sizeof(GUID)) == 0)) | |
100 | #define FOR_VISORBUS(channel_type_guid) (!(FOR_VISORHACKBUS(channel_type_guid))) | |
101 | ||
102 | #define is_diagpool_channel(channel_type_guid) \ | |
103 | (memcmp(&channel_type_guid, \ | |
104 | &UltraDiagPoolChannelProtocolGuid, sizeof(GUID)) == 0) | |
105 | ||
106 | typedef enum { | |
107 | PARTPROP_invalid, | |
108 | PARTPROP_name, | |
109 | PARTPROP_description, | |
110 | PARTPROP_handle, | |
111 | PARTPROP_busNumber, | |
112 | /* add new properties above, but don't forget to change | |
113 | * InitPartitionProperties() and show_partition_property() also... | |
114 | */ | |
115 | PARTPROP_last | |
116 | } PARTITION_property; | |
117 | static const char *PartitionTypeNames[] = { "partition", NULL }; | |
118 | ||
119 | static char *PartitionPropertyNames[PARTPROP_last + 1]; | |
120 | static void | |
121 | InitPartitionProperties(void) | |
122 | { | |
123 | char **p = PartitionPropertyNames; | |
124 | p[PARTPROP_invalid] = ""; | |
125 | p[PARTPROP_name] = "name"; | |
126 | p[PARTPROP_description] = "description"; | |
127 | p[PARTPROP_handle] = "handle"; | |
128 | p[PARTPROP_busNumber] = "busNumber"; | |
129 | p[PARTPROP_last] = NULL; | |
130 | } | |
131 | ||
132 | typedef enum { | |
133 | CTLVMPROP_invalid, | |
134 | CTLVMPROP_physAddr, | |
135 | CTLVMPROP_controlChannelAddr, | |
136 | CTLVMPROP_controlChannelBytes, | |
137 | CTLVMPROP_sparBootPart, | |
138 | CTLVMPROP_sparStoragePart, | |
139 | CTLVMPROP_livedumpLength, | |
140 | CTLVMPROP_livedumpCrc32, | |
141 | /* add new properties above, but don't forget to change | |
142 | * InitControlVmProperties() show_controlvm_property() also... | |
143 | */ | |
144 | CTLVMPROP_last | |
145 | } CONTROLVM_property; | |
146 | ||
147 | static const char *ControlVmTypeNames[] = { "controlvm", NULL }; | |
148 | ||
149 | static char *ControlVmPropertyNames[CTLVMPROP_last + 1]; | |
150 | static void | |
151 | InitControlVmProperties(void) | |
152 | { | |
153 | char **p = ControlVmPropertyNames; | |
154 | p[CTLVMPROP_invalid] = ""; | |
155 | p[CTLVMPROP_physAddr] = "physAddr"; | |
156 | p[CTLVMPROP_controlChannelAddr] = "controlChannelAddr"; | |
157 | p[CTLVMPROP_controlChannelBytes] = "controlChannelBytes"; | |
158 | p[CTLVMPROP_sparBootPart] = "spar_boot_part"; | |
159 | p[CTLVMPROP_sparStoragePart] = "spar_storage_part"; | |
160 | p[CTLVMPROP_livedumpLength] = "livedumpLength"; | |
161 | p[CTLVMPROP_livedumpCrc32] = "livedumpCrc32"; | |
162 | p[CTLVMPROP_last] = NULL; | |
163 | } | |
164 | ||
165 | static MYPROCOBJECT *ControlVmObject; | |
166 | static MYPROCTYPE *PartitionType; | |
167 | static MYPROCTYPE *ControlVmType; | |
168 | ||
169 | #define VISORCHIPSET_DIAG_PROC_ENTRY_FN "diagdump" | |
170 | static struct proc_dir_entry *diag_proc_dir; | |
171 | ||
172 | #define VISORCHIPSET_CHIPSET_PROC_ENTRY_FN "chipsetready" | |
173 | static struct proc_dir_entry *chipset_proc_dir; | |
174 | ||
175 | #define VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN "parahotplug" | |
176 | static struct proc_dir_entry *parahotplug_proc_dir; | |
177 | ||
178 | static LIST_HEAD(BusInfoList); | |
179 | static LIST_HEAD(DevInfoList); | |
180 | ||
181 | static struct proc_dir_entry *ProcDir; | |
182 | static VISORCHANNEL *ControlVm_channel; | |
183 | ||
184 | static ssize_t visorchipset_proc_read_writeonly(struct file *file, | |
185 | char __user *buf, | |
186 | size_t len, loff_t *offset); | |
187 | static ssize_t proc_read_installer(struct file *file, char __user *buf, | |
188 | size_t len, loff_t *offset); | |
189 | static ssize_t proc_write_installer(struct file *file, | |
190 | const char __user *buffer, | |
191 | size_t count, loff_t *ppos); | |
192 | static ssize_t proc_read_toolaction(struct file *file, char __user *buf, | |
193 | size_t len, loff_t *offset); | |
194 | static ssize_t proc_write_toolaction(struct file *file, | |
195 | const char __user *buffer, | |
196 | size_t count, loff_t *ppos); | |
197 | static ssize_t proc_read_bootToTool(struct file *file, char __user *buf, | |
198 | size_t len, loff_t *offset); | |
199 | static ssize_t proc_write_bootToTool(struct file *file, | |
200 | const char __user *buffer, | |
201 | size_t count, loff_t *ppos); | |
202 | static const struct file_operations proc_installer_fops = { | |
203 | .read = proc_read_installer, | |
204 | .write = proc_write_installer, | |
205 | }; | |
206 | ||
207 | static const struct file_operations proc_toolaction_fops = { | |
208 | .read = proc_read_toolaction, | |
209 | .write = proc_write_toolaction, | |
210 | }; | |
211 | ||
212 | static const struct file_operations proc_bootToTool_fops = { | |
213 | .read = proc_read_bootToTool, | |
214 | .write = proc_write_bootToTool, | |
215 | }; | |
216 | ||
217 | typedef struct { | |
bd5b9b32 | 218 | U8 __iomem *ptr; /* pointer to base address of payload pool */ |
12e364b9 KC |
219 | U64 offset; /* offset from beginning of controlvm |
220 | * channel to beginning of payload * pool */ | |
221 | U32 bytes; /* number of bytes in payload pool */ | |
222 | } CONTROLVM_PAYLOAD_INFO; | |
223 | ||
224 | /* Manages the request payload in the controlvm channel */ | |
225 | static CONTROLVM_PAYLOAD_INFO ControlVm_payload_info; | |
226 | ||
227 | static pCHANNEL_HEADER Test_Vnic_channel; | |
228 | ||
229 | typedef struct { | |
230 | CONTROLVM_MESSAGE_HEADER Dumpcapture_header; | |
231 | CONTROLVM_MESSAGE_HEADER Gettextdump_header; | |
232 | CONTROLVM_MESSAGE_HEADER Dumpcomplete_header; | |
233 | BOOL Gettextdump_outstanding; | |
234 | u32 crc32; | |
235 | ulong length; | |
236 | atomic_t buffers_in_use; | |
237 | ulong destination; | |
238 | } LIVEDUMP_INFO; | |
239 | /* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE / | |
240 | * CONTROLVM_DUMP_GETTEXTDUMP / CONTROLVM_DUMP_COMPLETE conversation. | |
241 | */ | |
242 | static LIVEDUMP_INFO LiveDump_info; | |
243 | ||
244 | /* The following globals are used to handle the scenario where we are unable to | |
245 | * offload the payload from a controlvm message due to memory requirements. In | |
246 | * this scenario, we simply stash the controlvm message, then attempt to | |
247 | * process it again the next time controlvm_periodic_work() runs. | |
248 | */ | |
249 | static CONTROLVM_MESSAGE ControlVm_Pending_Msg; | |
250 | static BOOL ControlVm_Pending_Msg_Valid = FALSE; | |
251 | ||
252 | /* Pool of struct putfile_buffer_entry, for keeping track of pending (incoming) | |
253 | * TRANSMIT_FILE PutFile payloads. | |
254 | */ | |
255 | static struct kmem_cache *Putfile_buffer_list_pool; | |
256 | static const char Putfile_buffer_list_pool_name[] = | |
257 | "controlvm_putfile_buffer_list_pool"; | |
258 | ||
259 | /* This identifies a data buffer that has been received via a controlvm messages | |
260 | * in a remote --> local CONTROLVM_TRANSMIT_FILE conversation. | |
261 | */ | |
262 | struct putfile_buffer_entry { | |
263 | struct list_head next; /* putfile_buffer_entry list */ | |
264 | PARSER_CONTEXT *parser_ctx; /* points to buffer containing input data */ | |
265 | }; | |
266 | ||
267 | /* List of struct putfile_request *, via next_putfile_request member. | |
268 | * Each entry in this list identifies an outstanding TRANSMIT_FILE | |
269 | * conversation. | |
270 | */ | |
271 | static LIST_HEAD(Putfile_request_list); | |
272 | ||
273 | /* This describes a buffer and its current state of transfer (e.g., how many | |
274 | * bytes have already been supplied as putfile data, and how many bytes are | |
275 | * remaining) for a putfile_request. | |
276 | */ | |
277 | struct putfile_active_buffer { | |
278 | /* a payload from a controlvm message, containing a file data buffer */ | |
279 | PARSER_CONTEXT *parser_ctx; | |
280 | /* points within data area of parser_ctx to next byte of data */ | |
281 | u8 *pnext; | |
282 | /* # bytes left from <pnext> to the end of this data buffer */ | |
283 | size_t bytes_remaining; | |
284 | }; | |
285 | ||
286 | #define PUTFILE_REQUEST_SIG 0x0906101302281211 | |
287 | /* This identifies a single remote --> local CONTROLVM_TRANSMIT_FILE | |
288 | * conversation. Structs of this type are dynamically linked into | |
289 | * <Putfile_request_list>. | |
290 | */ | |
291 | struct putfile_request { | |
292 | u64 sig; /* PUTFILE_REQUEST_SIG */ | |
293 | ||
294 | /* header from original TransmitFile request */ | |
295 | CONTROLVM_MESSAGE_HEADER controlvm_header; | |
296 | u64 file_request_number; /* from original TransmitFile request */ | |
297 | ||
298 | /* link to next struct putfile_request */ | |
299 | struct list_head next_putfile_request; | |
300 | ||
301 | /* most-recent sequence number supplied via a controlvm message */ | |
302 | u64 data_sequence_number; | |
303 | ||
304 | /* head of putfile_buffer_entry list, which describes the data to be | |
305 | * supplied as putfile data; | |
306 | * - this list is added to when controlvm messages come in that supply | |
307 | * file data | |
308 | * - this list is removed from via the hotplug program that is actually | |
309 | * consuming these buffers to write as file data */ | |
310 | struct list_head input_buffer_list; | |
311 | spinlock_t req_list_lock; /* lock for input_buffer_list */ | |
312 | ||
313 | /* waiters for input_buffer_list to go non-empty */ | |
314 | wait_queue_head_t input_buffer_wq; | |
315 | ||
316 | /* data not yet read within current putfile_buffer_entry */ | |
317 | struct putfile_active_buffer active_buf; | |
318 | ||
319 | /* <0 = failed, 0 = in-progress, >0 = successful; */ | |
320 | /* note that this must be set with req_list_lock, and if you set <0, */ | |
321 | /* it is your responsibility to also free up all of the other objects */ | |
322 | /* in this struct (like input_buffer_list, active_buf.parser_ctx) */ | |
323 | /* before releasing the lock */ | |
324 | int completion_status; | |
325 | }; | |
326 | ||
bd5b9b32 | 327 | static atomic_t Visorchipset_cache_buffers_in_use = ATOMIC_INIT(0); |
12e364b9 KC |
328 | |
329 | struct parahotplug_request { | |
330 | struct list_head list; | |
331 | int id; | |
332 | unsigned long expiration; | |
333 | CONTROLVM_MESSAGE msg; | |
334 | }; | |
335 | ||
336 | static LIST_HEAD(Parahotplug_request_list); | |
337 | static DEFINE_SPINLOCK(Parahotplug_request_list_lock); /* lock for above */ | |
338 | static void parahotplug_process_list(void); | |
339 | ||
340 | /* Manages the info for a CONTROLVM_DUMP_CAPTURESTATE / | |
341 | * CONTROLVM_REPORTEVENT. | |
342 | */ | |
343 | static VISORCHIPSET_BUSDEV_NOTIFIERS BusDev_Server_Notifiers; | |
344 | static VISORCHIPSET_BUSDEV_NOTIFIERS BusDev_Client_Notifiers; | |
345 | ||
346 | static void bus_create_response(ulong busNo, int response); | |
347 | static void bus_destroy_response(ulong busNo, int response); | |
348 | static void device_create_response(ulong busNo, ulong devNo, int response); | |
349 | static void device_destroy_response(ulong busNo, ulong devNo, int response); | |
350 | static void device_resume_response(ulong busNo, ulong devNo, int response); | |
351 | ||
352 | static VISORCHIPSET_BUSDEV_RESPONDERS BusDev_Responders = { | |
353 | .bus_create = bus_create_response, | |
354 | .bus_destroy = bus_destroy_response, | |
355 | .device_create = device_create_response, | |
356 | .device_destroy = device_destroy_response, | |
927c7927 | 357 | .device_pause = visorchipset_device_pause_response, |
12e364b9 KC |
358 | .device_resume = device_resume_response, |
359 | }; | |
360 | ||
361 | /* info for /dev/visorchipset */ | |
362 | static dev_t MajorDev = -1; /**< indicates major num for device */ | |
363 | ||
364 | /* /sys/devices/platform/visorchipset */ | |
365 | static struct platform_device Visorchipset_platform_device = { | |
366 | .name = "visorchipset", | |
367 | .id = -1, | |
368 | }; | |
369 | ||
370 | /* Function prototypes */ | |
371 | static void controlvm_respond(CONTROLVM_MESSAGE_HEADER *msgHdr, int response); | |
372 | static void controlvm_respond_chipset_init(CONTROLVM_MESSAGE_HEADER *msgHdr, | |
373 | int response, | |
374 | ULTRA_CHIPSET_FEATURE features); | |
375 | static void controlvm_respond_physdev_changestate(CONTROLVM_MESSAGE_HEADER * | |
376 | msgHdr, int response, | |
377 | ULTRA_SEGMENT_STATE state); | |
378 | ||
379 | static void | |
380 | show_partition_property(struct seq_file *f, void *ctx, int property) | |
381 | { | |
382 | VISORCHIPSET_BUS_INFO *info = (VISORCHIPSET_BUS_INFO *) (ctx); | |
383 | ||
384 | switch (property) { | |
385 | case PARTPROP_name: | |
386 | seq_printf(f, "%s\n", NONULLSTR(info->name)); | |
387 | break; | |
388 | case PARTPROP_description: | |
389 | seq_printf(f, "%s\n", NONULLSTR(info->description)); | |
390 | break; | |
391 | case PARTPROP_handle: | |
392 | seq_printf(f, "0x%-16.16Lx\n", info->partitionHandle); | |
393 | break; | |
394 | case PARTPROP_busNumber: | |
395 | seq_printf(f, "%d\n", info->busNo); | |
396 | break; | |
397 | default: | |
398 | seq_printf(f, "(%d??)\n", property); | |
399 | break; | |
400 | } | |
401 | } | |
402 | ||
403 | static void | |
404 | show_controlvm_property(struct seq_file *f, void *ctx, int property) | |
405 | { | |
406 | /* Note: ctx is not needed since we only have 1 controlvm channel */ | |
407 | switch (property) { | |
408 | case CTLVMPROP_physAddr: | |
409 | if (ControlVm_channel == NULL) | |
410 | seq_puts(f, "0x0\n"); | |
411 | else | |
412 | seq_printf(f, "0x%-16.16Lx\n", | |
413 | visorchannel_get_physaddr | |
414 | (ControlVm_channel)); | |
415 | break; | |
416 | case CTLVMPROP_controlChannelAddr: | |
417 | if (ControlVm_channel == NULL) | |
418 | seq_puts(f, "0x0\n"); | |
419 | else { | |
420 | GUEST_PHYSICAL_ADDRESS addr = 0; | |
421 | visorchannel_read(ControlVm_channel, | |
422 | offsetof | |
423 | (ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
424 | gpControlChannel), &addr, | |
425 | sizeof(addr)); | |
426 | seq_printf(f, "0x%-16.16Lx\n", (u64) (addr)); | |
427 | } | |
428 | break; | |
429 | case CTLVMPROP_controlChannelBytes: | |
430 | if (ControlVm_channel == NULL) | |
431 | seq_puts(f, "0x0\n"); | |
432 | else { | |
433 | U32 bytes = 0; | |
434 | visorchannel_read(ControlVm_channel, | |
435 | offsetof | |
436 | (ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
437 | ControlChannelBytes), &bytes, | |
438 | sizeof(bytes)); | |
439 | seq_printf(f, "%lu\n", (ulong) (bytes)); | |
440 | } | |
441 | break; | |
442 | case CTLVMPROP_sparBootPart: | |
443 | seq_puts(f, "0:0:0:0/1\n"); | |
444 | break; | |
445 | case CTLVMPROP_sparStoragePart: | |
446 | seq_puts(f, "0:0:0:0/2\n"); | |
447 | break; | |
448 | case CTLVMPROP_livedumpLength: | |
449 | seq_printf(f, "%lu\n", LiveDump_info.length); | |
450 | break; | |
451 | case CTLVMPROP_livedumpCrc32: | |
452 | seq_printf(f, "%lu\n", (ulong) LiveDump_info.crc32); | |
453 | break; | |
454 | default: | |
455 | seq_printf(f, "(%d??)\n", property); | |
456 | break; | |
457 | } | |
458 | } | |
459 | ||
460 | static void | |
461 | proc_Init(void) | |
462 | { | |
463 | if (ProcDir == NULL) { | |
464 | ProcDir = proc_mkdir(MYDRVNAME, NULL); | |
465 | if (ProcDir == NULL) { | |
466 | LOGERR("failed to create /proc directory %s", | |
467 | MYDRVNAME); | |
468 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, | |
469 | POSTCODE_SEVERITY_ERR); | |
470 | } | |
471 | } | |
472 | } | |
473 | ||
474 | static void | |
475 | proc_DeInit(void) | |
476 | { | |
477 | if (ProcDir != NULL) | |
478 | remove_proc_entry(MYDRVNAME, NULL); | |
479 | ProcDir = NULL; | |
480 | } | |
481 | ||
482 | #if 0 | |
483 | static void | |
484 | testUnicode(void) | |
485 | { | |
486 | wchar_t unicodeString[] = { 'a', 'b', 'c', 0 }; | |
487 | char s[sizeof(unicodeString) * NLS_MAX_CHARSET_SIZE]; | |
488 | wchar_t unicode2[99]; | |
489 | ||
490 | /* NOTE: Either due to a bug, or feature I don't understand, the | |
491 | * kernel utf8_mbstowcs() and utf_wcstombs() do NOT copy the | |
492 | * trailed NUL byte!! REALLY!!!!! Arrrrgggghhhhh | |
493 | */ | |
494 | ||
495 | LOGINF("sizeof(wchar_t) = %d", sizeof(wchar_t)); | |
496 | LOGINF("utf8_wcstombs=%d", | |
497 | chrs = utf8_wcstombs(s, unicodeString, sizeof(s))); | |
498 | if (chrs >= 0) | |
499 | s[chrs] = '\0'; /* GRRRRRRRR */ | |
500 | LOGINF("s='%s'", s); | |
501 | LOGINF("utf8_mbstowcs=%d", chrs = utf8_mbstowcs(unicode2, s, 100)); | |
502 | if (chrs >= 0) | |
503 | unicode2[chrs] = 0; /* GRRRRRRRR */ | |
504 | if (memcmp(unicodeString, unicode2, sizeof(unicodeString)) == 0) | |
505 | LOGINF("strings match... good"); | |
506 | else | |
507 | LOGINF("strings did not match!!"); | |
508 | } | |
509 | #endif | |
510 | ||
511 | static void | |
512 | busInfo_clear(void *v) | |
513 | { | |
514 | VISORCHIPSET_BUS_INFO *p = (VISORCHIPSET_BUS_INFO *) (v); | |
515 | ||
516 | if (p->procObject) { | |
927c7927 | 517 | visor_proc_DestroyObject(p->procObject); |
12e364b9 KC |
518 | p->procObject = NULL; |
519 | } | |
520 | kfree(p->name); | |
521 | p->name = NULL; | |
522 | ||
523 | kfree(p->description); | |
524 | p->description = NULL; | |
525 | ||
526 | p->state.created = 0; | |
527 | memset(p, 0, sizeof(VISORCHIPSET_BUS_INFO)); | |
528 | } | |
529 | ||
530 | static void | |
531 | devInfo_clear(void *v) | |
532 | { | |
533 | VISORCHIPSET_DEVICE_INFO *p = (VISORCHIPSET_DEVICE_INFO *) (v); | |
534 | p->state.created = 0; | |
535 | memset(p, 0, sizeof(VISORCHIPSET_DEVICE_INFO)); | |
536 | } | |
537 | ||
538 | static U8 | |
539 | check_chipset_events(void) | |
540 | { | |
541 | int i; | |
542 | U8 send_msg = 1; | |
543 | /* Check events to determine if response should be sent */ | |
544 | for (i = 0; i < MAX_CHIPSET_EVENTS; i++) | |
545 | send_msg &= chipset_events[i]; | |
546 | return send_msg; | |
547 | } | |
548 | ||
549 | static void | |
550 | clear_chipset_events(void) | |
551 | { | |
552 | int i; | |
553 | /* Clear chipset_events */ | |
554 | for (i = 0; i < MAX_CHIPSET_EVENTS; i++) | |
555 | chipset_events[i] = 0; | |
556 | } | |
557 | ||
558 | void | |
559 | visorchipset_register_busdev_server(VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers, | |
560 | VISORCHIPSET_BUSDEV_RESPONDERS *responders, | |
561 | ULTRA_VBUS_DEVICEINFO *driverInfo) | |
562 | { | |
563 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
564 | if (notifiers == NULL) { | |
565 | memset(&BusDev_Server_Notifiers, 0, | |
566 | sizeof(BusDev_Server_Notifiers)); | |
567 | serverregistered = 0; /* clear flag */ | |
568 | } else { | |
569 | BusDev_Server_Notifiers = *notifiers; | |
570 | serverregistered = 1; /* set flag */ | |
571 | } | |
572 | if (responders) | |
573 | *responders = BusDev_Responders; | |
574 | if (driverInfo) | |
575 | BusDeviceInfo_Init(driverInfo, "chipset", "visorchipset", | |
576 | VERSION, NULL, __DATE__, __TIME__); | |
577 | ||
578 | UNLOCKSEM(&NotifierLock); | |
579 | } | |
580 | EXPORT_SYMBOL_GPL(visorchipset_register_busdev_server); | |
581 | ||
582 | void | |
583 | visorchipset_register_busdev_client(VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers, | |
584 | VISORCHIPSET_BUSDEV_RESPONDERS *responders, | |
585 | ULTRA_VBUS_DEVICEINFO *driverInfo) | |
586 | { | |
587 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
588 | if (notifiers == NULL) { | |
589 | memset(&BusDev_Client_Notifiers, 0, | |
590 | sizeof(BusDev_Client_Notifiers)); | |
591 | clientregistered = 0; /* clear flag */ | |
592 | } else { | |
593 | BusDev_Client_Notifiers = *notifiers; | |
594 | clientregistered = 1; /* set flag */ | |
595 | } | |
596 | if (responders) | |
597 | *responders = BusDev_Responders; | |
598 | if (driverInfo) | |
599 | BusDeviceInfo_Init(driverInfo, "chipset(bolts)", "visorchipset", | |
600 | VERSION, NULL, __DATE__, __TIME__); | |
601 | UNLOCKSEM(&NotifierLock); | |
602 | } | |
603 | EXPORT_SYMBOL_GPL(visorchipset_register_busdev_client); | |
604 | ||
605 | static void | |
606 | cleanup_controlvm_structures(void) | |
607 | { | |
e6b1ea77 DC |
608 | VISORCHIPSET_BUS_INFO *bi, *tmp_bi; |
609 | VISORCHIPSET_DEVICE_INFO *di, *tmp_di; | |
12e364b9 | 610 | |
e6b1ea77 | 611 | list_for_each_entry_safe(bi, tmp_bi, &BusInfoList, entry) { |
12e364b9 KC |
612 | busInfo_clear(bi); |
613 | list_del(&bi->entry); | |
614 | kfree(bi); | |
615 | } | |
616 | ||
e6b1ea77 | 617 | list_for_each_entry_safe(di, tmp_di, &DevInfoList, entry) { |
12e364b9 KC |
618 | devInfo_clear(di); |
619 | list_del(&di->entry); | |
620 | kfree(di); | |
621 | } | |
622 | } | |
623 | ||
624 | static void | |
625 | chipset_init(CONTROLVM_MESSAGE *inmsg) | |
626 | { | |
627 | static int chipset_inited; | |
628 | ULTRA_CHIPSET_FEATURE features = 0; | |
629 | int rc = CONTROLVM_RESP_SUCCESS; | |
630 | ||
631 | POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
632 | if (chipset_inited) { | |
633 | LOGERR("CONTROLVM_CHIPSET_INIT Failed: Already Done."); | |
22ad57ba KC |
634 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
635 | goto Away; | |
12e364b9 KC |
636 | } |
637 | chipset_inited = 1; | |
638 | POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
639 | ||
640 | /* Set features to indicate we support parahotplug (if Command | |
641 | * also supports it). */ | |
642 | features = | |
643 | inmsg->cmd.initChipset. | |
644 | features & ULTRA_CHIPSET_FEATURE_PARA_HOTPLUG; | |
645 | ||
646 | /* Set the "reply" bit so Command knows this is a | |
647 | * features-aware driver. */ | |
648 | features |= ULTRA_CHIPSET_FEATURE_REPLY; | |
649 | ||
650 | Away: | |
651 | if (rc < 0) | |
652 | cleanup_controlvm_structures(); | |
653 | if (inmsg->hdr.Flags.responseExpected) | |
654 | controlvm_respond_chipset_init(&inmsg->hdr, rc, features); | |
655 | } | |
656 | ||
657 | static void | |
658 | controlvm_init_response(CONTROLVM_MESSAGE *msg, | |
659 | CONTROLVM_MESSAGE_HEADER *msgHdr, int response) | |
660 | { | |
661 | memset(msg, 0, sizeof(CONTROLVM_MESSAGE)); | |
662 | memcpy(&msg->hdr, msgHdr, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
663 | msg->hdr.PayloadBytes = 0; | |
664 | msg->hdr.PayloadVmOffset = 0; | |
665 | msg->hdr.PayloadMaxBytes = 0; | |
666 | if (response < 0) { | |
667 | msg->hdr.Flags.failed = 1; | |
668 | msg->hdr.CompletionStatus = (U32) (-response); | |
669 | } | |
670 | } | |
671 | ||
672 | static void | |
673 | controlvm_respond(CONTROLVM_MESSAGE_HEADER *msgHdr, int response) | |
674 | { | |
675 | CONTROLVM_MESSAGE outmsg; | |
676 | if (!ControlVm_channel) | |
677 | return; | |
678 | controlvm_init_response(&outmsg, msgHdr, response); | |
679 | /* For DiagPool channel DEVICE_CHANGESTATE, we need to send | |
680 | * back the deviceChangeState structure in the packet. */ | |
681 | if (msgHdr->Id == CONTROLVM_DEVICE_CHANGESTATE | |
682 | && g_DeviceChangeStatePacket.deviceChangeState.busNo == | |
683 | g_diagpoolBusNo | |
684 | && g_DeviceChangeStatePacket.deviceChangeState.devNo == | |
685 | g_diagpoolDevNo) | |
686 | outmsg.cmd = g_DeviceChangeStatePacket; | |
687 | if (outmsg.hdr.Flags.testMessage == 1) { | |
688 | LOGINF("%s controlvm_msg=0x%x response=%d for test message", | |
689 | __func__, outmsg.hdr.Id, response); | |
690 | return; | |
691 | } | |
692 | if (!visorchannel_signalinsert(ControlVm_channel, | |
693 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
694 | LOGERR("signalinsert failed!"); | |
695 | return; | |
696 | } | |
697 | } | |
698 | ||
699 | static void | |
700 | controlvm_respond_chipset_init(CONTROLVM_MESSAGE_HEADER *msgHdr, int response, | |
701 | ULTRA_CHIPSET_FEATURE features) | |
702 | { | |
703 | CONTROLVM_MESSAGE outmsg; | |
704 | if (!ControlVm_channel) | |
705 | return; | |
706 | controlvm_init_response(&outmsg, msgHdr, response); | |
707 | outmsg.cmd.initChipset.features = features; | |
708 | if (!visorchannel_signalinsert(ControlVm_channel, | |
709 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
710 | LOGERR("signalinsert failed!"); | |
711 | return; | |
712 | } | |
713 | } | |
714 | ||
715 | static void | |
716 | controlvm_respond_physdev_changestate(CONTROLVM_MESSAGE_HEADER *msgHdr, | |
717 | int response, ULTRA_SEGMENT_STATE state) | |
718 | { | |
719 | CONTROLVM_MESSAGE outmsg; | |
720 | if (!ControlVm_channel) | |
721 | return; | |
722 | controlvm_init_response(&outmsg, msgHdr, response); | |
723 | outmsg.cmd.deviceChangeState.state = state; | |
724 | outmsg.cmd.deviceChangeState.flags.physicalDevice = 1; | |
725 | if (!visorchannel_signalinsert(ControlVm_channel, | |
726 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
727 | LOGERR("signalinsert failed!"); | |
728 | return; | |
729 | } | |
730 | } | |
731 | ||
732 | void | |
733 | visorchipset_save_message(CONTROLVM_MESSAGE *msg, CRASH_OBJ_TYPE type) | |
734 | { | |
735 | U32 localSavedCrashMsgOffset; | |
736 | U16 localSavedCrashMsgCount; | |
737 | ||
738 | /* get saved message count */ | |
739 | if (visorchannel_read(ControlVm_channel, | |
740 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
741 | SavedCrashMsgCount), | |
742 | &localSavedCrashMsgCount, sizeof(U16)) < 0) { | |
743 | LOGERR("failed to get Saved Message Count"); | |
744 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
745 | POSTCODE_SEVERITY_ERR); | |
746 | return; | |
747 | } | |
748 | ||
749 | if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) { | |
750 | LOGERR("Saved Message Count incorrect %d", | |
751 | localSavedCrashMsgCount); | |
752 | POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC, | |
753 | localSavedCrashMsgCount, | |
754 | POSTCODE_SEVERITY_ERR); | |
755 | return; | |
756 | } | |
757 | ||
758 | /* get saved crash message offset */ | |
759 | if (visorchannel_read(ControlVm_channel, | |
760 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
761 | SavedCrashMsgOffset), | |
762 | &localSavedCrashMsgOffset, sizeof(U32)) < 0) { | |
763 | LOGERR("failed to get Saved Message Offset"); | |
764 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
765 | POSTCODE_SEVERITY_ERR); | |
766 | return; | |
767 | } | |
768 | ||
769 | if (type == CRASH_bus) { | |
770 | if (visorchannel_write(ControlVm_channel, | |
771 | localSavedCrashMsgOffset, | |
772 | msg, sizeof(CONTROLVM_MESSAGE)) < 0) { | |
773 | LOGERR("SAVE_MSG_BUS_FAILURE: Failed to write CrashCreateBusMsg!"); | |
774 | POSTCODE_LINUX_2(SAVE_MSG_BUS_FAILURE_PC, | |
775 | POSTCODE_SEVERITY_ERR); | |
776 | return; | |
777 | } | |
778 | } else { | |
779 | if (visorchannel_write(ControlVm_channel, | |
780 | localSavedCrashMsgOffset + | |
781 | sizeof(CONTROLVM_MESSAGE), msg, | |
782 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
783 | LOGERR("SAVE_MSG_DEV_FAILURE: Failed to write CrashCreateDevMsg!"); | |
784 | POSTCODE_LINUX_2(SAVE_MSG_DEV_FAILURE_PC, | |
785 | POSTCODE_SEVERITY_ERR); | |
786 | return; | |
787 | } | |
788 | } | |
789 | } | |
790 | EXPORT_SYMBOL_GPL(visorchipset_save_message); | |
791 | ||
792 | static void | |
793 | bus_responder(CONTROLVM_ID cmdId, ulong busNo, int response) | |
794 | { | |
795 | VISORCHIPSET_BUS_INFO *p = NULL; | |
796 | BOOL need_clear = FALSE; | |
797 | ||
798 | p = findbus(&BusInfoList, busNo); | |
799 | if (!p) { | |
800 | LOGERR("internal error busNo=%lu", busNo); | |
801 | return; | |
802 | } | |
803 | if (response < 0) { | |
804 | if ((cmdId == CONTROLVM_BUS_CREATE) && | |
805 | (response != (-CONTROLVM_RESP_ERROR_ALREADY_DONE))) | |
806 | /* undo the row we just created... */ | |
807 | delbusdevices(&DevInfoList, busNo); | |
808 | } else { | |
809 | if (cmdId == CONTROLVM_BUS_CREATE) | |
810 | p->state.created = 1; | |
811 | if (cmdId == CONTROLVM_BUS_DESTROY) | |
812 | need_clear = TRUE; | |
813 | } | |
814 | ||
815 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
816 | LOGERR("bus_responder no pending msg"); | |
817 | return; /* no controlvm response needed */ | |
818 | } | |
819 | if (p->pendingMsgHdr.Id != (U32) cmdId) { | |
820 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
821 | return; | |
822 | } | |
823 | controlvm_respond(&p->pendingMsgHdr, response); | |
824 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
825 | if (need_clear) { | |
826 | busInfo_clear(p); | |
827 | delbusdevices(&DevInfoList, busNo); | |
828 | } | |
829 | } | |
830 | ||
831 | static void | |
832 | device_changestate_responder(CONTROLVM_ID cmdId, | |
833 | ulong busNo, ulong devNo, int response, | |
834 | ULTRA_SEGMENT_STATE responseState) | |
835 | { | |
836 | VISORCHIPSET_DEVICE_INFO *p = NULL; | |
837 | CONTROLVM_MESSAGE outmsg; | |
838 | ||
839 | if (!ControlVm_channel) | |
840 | return; | |
841 | ||
842 | p = finddevice(&DevInfoList, busNo, devNo); | |
843 | if (!p) { | |
844 | LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo); | |
845 | return; | |
846 | } | |
847 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
848 | LOGERR("device_responder no pending msg"); | |
849 | return; /* no controlvm response needed */ | |
850 | } | |
851 | if (p->pendingMsgHdr.Id != cmdId) { | |
852 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
853 | return; | |
854 | } | |
855 | ||
856 | controlvm_init_response(&outmsg, &p->pendingMsgHdr, response); | |
857 | ||
858 | outmsg.cmd.deviceChangeState.busNo = busNo; | |
859 | outmsg.cmd.deviceChangeState.devNo = devNo; | |
860 | outmsg.cmd.deviceChangeState.state = responseState; | |
861 | ||
862 | if (!visorchannel_signalinsert(ControlVm_channel, | |
863 | CONTROLVM_QUEUE_REQUEST, &outmsg)) { | |
864 | LOGERR("signalinsert failed!"); | |
865 | return; | |
866 | } | |
867 | ||
868 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
869 | } | |
870 | ||
871 | static void | |
872 | device_responder(CONTROLVM_ID cmdId, ulong busNo, ulong devNo, int response) | |
873 | { | |
874 | VISORCHIPSET_DEVICE_INFO *p = NULL; | |
875 | BOOL need_clear = FALSE; | |
876 | ||
877 | p = finddevice(&DevInfoList, busNo, devNo); | |
878 | if (!p) { | |
879 | LOGERR("internal error; busNo=%lu, devNo=%lu", busNo, devNo); | |
880 | return; | |
881 | } | |
882 | if (response >= 0) { | |
883 | if (cmdId == CONTROLVM_DEVICE_CREATE) | |
884 | p->state.created = 1; | |
885 | if (cmdId == CONTROLVM_DEVICE_DESTROY) | |
886 | need_clear = TRUE; | |
887 | } | |
888 | ||
889 | if (p->pendingMsgHdr.Id == CONTROLVM_INVALID) { | |
890 | LOGERR("device_responder no pending msg"); | |
891 | return; /* no controlvm response needed */ | |
892 | } | |
893 | if (p->pendingMsgHdr.Id != (U32) cmdId) { | |
894 | LOGERR("expected=%d, found=%d", cmdId, p->pendingMsgHdr.Id); | |
895 | return; | |
896 | } | |
897 | controlvm_respond(&p->pendingMsgHdr, response); | |
898 | p->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
899 | if (need_clear) | |
900 | devInfo_clear(p); | |
901 | } | |
902 | ||
903 | static void | |
904 | bus_epilog(U32 busNo, | |
905 | U32 cmd, CONTROLVM_MESSAGE_HEADER *msgHdr, | |
906 | int response, BOOL needResponse) | |
907 | { | |
908 | BOOL notified = FALSE; | |
909 | ||
910 | VISORCHIPSET_BUS_INFO *pBusInfo = findbus(&BusInfoList, busNo); | |
911 | ||
912 | if (!pBusInfo) { | |
913 | LOGERR("HUH? bad busNo=%d", busNo); | |
914 | return; | |
915 | } | |
916 | if (needResponse) { | |
917 | memcpy(&pBusInfo->pendingMsgHdr, msgHdr, | |
918 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
919 | } else | |
920 | pBusInfo->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
921 | ||
922 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
923 | if (response == CONTROLVM_RESP_SUCCESS) { | |
924 | switch (cmd) { | |
925 | case CONTROLVM_BUS_CREATE: | |
926 | /* We can't tell from the bus_create | |
927 | * information which of our 2 bus flavors the | |
928 | * devices on this bus will ultimately end up. | |
929 | * FORTUNATELY, it turns out it is harmless to | |
930 | * send the bus_create to both of them. We can | |
931 | * narrow things down a little bit, though, | |
932 | * because we know: - BusDev_Server can handle | |
933 | * either server or client devices | |
934 | * - BusDev_Client can handle ONLY client | |
935 | * devices */ | |
936 | if (BusDev_Server_Notifiers.bus_create) { | |
937 | (*BusDev_Server_Notifiers.bus_create) (busNo); | |
938 | notified = TRUE; | |
939 | } | |
940 | if ((!pBusInfo->flags.server) /*client */ && | |
941 | BusDev_Client_Notifiers.bus_create) { | |
942 | (*BusDev_Client_Notifiers.bus_create) (busNo); | |
943 | notified = TRUE; | |
944 | } | |
945 | break; | |
946 | case CONTROLVM_BUS_DESTROY: | |
947 | if (BusDev_Server_Notifiers.bus_destroy) { | |
948 | (*BusDev_Server_Notifiers.bus_destroy) (busNo); | |
949 | notified = TRUE; | |
950 | } | |
951 | if ((!pBusInfo->flags.server) /*client */ && | |
952 | BusDev_Client_Notifiers.bus_destroy) { | |
953 | (*BusDev_Client_Notifiers.bus_destroy) (busNo); | |
954 | notified = TRUE; | |
955 | } | |
956 | break; | |
957 | } | |
958 | } | |
959 | if (notified) | |
960 | /* The callback function just called above is responsible | |
961 | * for calling the appropriate VISORCHIPSET_BUSDEV_RESPONDERS | |
962 | * function, which will call bus_responder() | |
963 | */ | |
964 | ; | |
965 | else | |
966 | bus_responder(cmd, busNo, response); | |
967 | UNLOCKSEM(&NotifierLock); | |
968 | } | |
969 | ||
970 | static void | |
971 | device_epilog(U32 busNo, U32 devNo, ULTRA_SEGMENT_STATE state, U32 cmd, | |
972 | CONTROLVM_MESSAGE_HEADER *msgHdr, int response, | |
973 | BOOL needResponse, BOOL for_visorbus) | |
974 | { | |
975 | VISORCHIPSET_BUSDEV_NOTIFIERS *notifiers = NULL; | |
976 | BOOL notified = FALSE; | |
977 | ||
978 | VISORCHIPSET_DEVICE_INFO *pDevInfo = | |
979 | finddevice(&DevInfoList, busNo, devNo); | |
980 | char *envp[] = { | |
981 | "SPARSP_DIAGPOOL_PAUSED_STATE = 1", | |
982 | NULL | |
983 | }; | |
984 | ||
985 | if (!pDevInfo) { | |
986 | LOGERR("HUH? bad busNo=%d, devNo=%d", busNo, devNo); | |
987 | return; | |
988 | } | |
989 | if (for_visorbus) | |
990 | notifiers = &BusDev_Server_Notifiers; | |
991 | else | |
992 | notifiers = &BusDev_Client_Notifiers; | |
993 | if (needResponse) { | |
994 | memcpy(&pDevInfo->pendingMsgHdr, msgHdr, | |
995 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
996 | } else | |
997 | pDevInfo->pendingMsgHdr.Id = CONTROLVM_INVALID; | |
998 | ||
999 | LOCKSEM_UNINTERRUPTIBLE(&NotifierLock); | |
1000 | if (response >= 0) { | |
1001 | switch (cmd) { | |
1002 | case CONTROLVM_DEVICE_CREATE: | |
1003 | if (notifiers->device_create) { | |
1004 | (*notifiers->device_create) (busNo, devNo); | |
1005 | notified = TRUE; | |
1006 | } | |
1007 | break; | |
1008 | case CONTROLVM_DEVICE_CHANGESTATE: | |
1009 | /* ServerReady / ServerRunning / SegmentStateRunning */ | |
1010 | if (state.Alive == SegmentStateRunning.Alive && | |
1011 | state.Operating == SegmentStateRunning.Operating) { | |
1012 | if (notifiers->device_resume) { | |
1013 | (*notifiers->device_resume) (busNo, | |
1014 | devNo); | |
1015 | notified = TRUE; | |
1016 | } | |
1017 | } | |
1018 | /* ServerNotReady / ServerLost / SegmentStateStandby */ | |
1019 | else if (state.Alive == SegmentStateStandby.Alive && | |
1020 | state.Operating == | |
1021 | SegmentStateStandby.Operating) { | |
1022 | /* technically this is standby case | |
1023 | * where server is lost | |
1024 | */ | |
1025 | if (notifiers->device_pause) { | |
1026 | (*notifiers->device_pause) (busNo, | |
1027 | devNo); | |
1028 | notified = TRUE; | |
1029 | } | |
1030 | } else if (state.Alive == SegmentStatePaused.Alive && | |
1031 | state.Operating == | |
1032 | SegmentStatePaused.Operating) { | |
1033 | /* this is lite pause where channel is | |
1034 | * still valid just 'pause' of it | |
1035 | */ | |
1036 | if (busNo == g_diagpoolBusNo | |
1037 | && devNo == g_diagpoolDevNo) { | |
1038 | LOGINF("DEVICE_CHANGESTATE(DiagpoolChannel busNo=%d devNo=%d is pausing...)", | |
1039 | busNo, devNo); | |
1040 | /* this will trigger the | |
1041 | * diag_shutdown.sh script in | |
1042 | * the visorchipset hotplug */ | |
1043 | kobject_uevent_env | |
1044 | (&Visorchipset_platform_device.dev. | |
1045 | kobj, KOBJ_ONLINE, envp); | |
1046 | } | |
1047 | } | |
1048 | break; | |
1049 | case CONTROLVM_DEVICE_DESTROY: | |
1050 | if (notifiers->device_destroy) { | |
1051 | (*notifiers->device_destroy) (busNo, devNo); | |
1052 | notified = TRUE; | |
1053 | } | |
1054 | break; | |
1055 | } | |
1056 | } | |
1057 | if (notified) | |
1058 | /* The callback function just called above is responsible | |
1059 | * for calling the appropriate VISORCHIPSET_BUSDEV_RESPONDERS | |
1060 | * function, which will call device_responder() | |
1061 | */ | |
1062 | ; | |
1063 | else | |
1064 | device_responder(cmd, busNo, devNo, response); | |
1065 | UNLOCKSEM(&NotifierLock); | |
1066 | } | |
1067 | ||
1068 | static void | |
1069 | bus_create(CONTROLVM_MESSAGE *inmsg) | |
1070 | { | |
1071 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1072 | ulong busNo = cmd->createBus.busNo; | |
1073 | int rc = CONTROLVM_RESP_SUCCESS; | |
1074 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1075 | ||
1076 | ||
1077 | pBusInfo = findbus(&BusInfoList, busNo); | |
1078 | if (pBusInfo && (pBusInfo->state.created == 1)) { | |
1079 | LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu already exists", | |
1080 | busNo); | |
1081 | POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo, | |
1082 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1083 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1084 | goto Away; | |
12e364b9 | 1085 | } |
97a84f12 | 1086 | pBusInfo = kzalloc(sizeof(VISORCHIPSET_BUS_INFO), GFP_KERNEL); |
12e364b9 | 1087 | if (pBusInfo == NULL) { |
97a84f12 | 1088 | LOGERR("CONTROLVM_BUS_CREATE Failed: bus %lu kzalloc failed", |
12e364b9 KC |
1089 | busNo); |
1090 | POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, busNo, | |
1091 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1092 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1093 | goto Away; | |
12e364b9 KC |
1094 | } |
1095 | ||
12e364b9 KC |
1096 | INIT_LIST_HEAD(&pBusInfo->entry); |
1097 | pBusInfo->busNo = busNo; | |
1098 | pBusInfo->devNo = cmd->createBus.deviceCount; | |
1099 | ||
1100 | POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1101 | ||
1102 | if (inmsg->hdr.Flags.testMessage == 1) | |
1103 | pBusInfo->chanInfo.addrType = ADDRTYPE_localTest; | |
1104 | else | |
1105 | pBusInfo->chanInfo.addrType = ADDRTYPE_localPhysical; | |
1106 | ||
1107 | pBusInfo->flags.server = inmsg->hdr.Flags.server; | |
1108 | pBusInfo->chanInfo.channelAddr = cmd->createBus.channelAddr; | |
1109 | pBusInfo->chanInfo.nChannelBytes = cmd->createBus.channelBytes; | |
1110 | pBusInfo->chanInfo.channelTypeGuid = cmd->createBus.busDataTypeGuid; | |
1111 | pBusInfo->chanInfo.channelInstGuid = cmd->createBus.busInstGuid; | |
1112 | ||
1113 | list_add(&pBusInfo->entry, &BusInfoList); | |
1114 | ||
1115 | POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1116 | ||
1117 | Away: | |
1118 | bus_epilog(busNo, CONTROLVM_BUS_CREATE, &inmsg->hdr, | |
1119 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1120 | } | |
1121 | ||
1122 | static void | |
1123 | bus_destroy(CONTROLVM_MESSAGE *inmsg) | |
1124 | { | |
1125 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1126 | ulong busNo = cmd->destroyBus.busNo; | |
1127 | VISORCHIPSET_BUS_INFO *pBusInfo; | |
1128 | int rc = CONTROLVM_RESP_SUCCESS; | |
1129 | ||
1130 | pBusInfo = findbus(&BusInfoList, busNo); | |
1131 | if (!pBusInfo) { | |
1132 | LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu invalid", busNo); | |
22ad57ba KC |
1133 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1134 | goto Away; | |
12e364b9 KC |
1135 | } |
1136 | if (pBusInfo->state.created == 0) { | |
1137 | LOGERR("CONTROLVM_BUS_DESTROY Failed: bus %lu already destroyed", | |
1138 | busNo); | |
22ad57ba KC |
1139 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1140 | goto Away; | |
12e364b9 KC |
1141 | } |
1142 | ||
1143 | Away: | |
1144 | bus_epilog(busNo, CONTROLVM_BUS_DESTROY, &inmsg->hdr, | |
1145 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1146 | } | |
1147 | ||
1148 | static void | |
1149 | bus_configure(CONTROLVM_MESSAGE *inmsg, PARSER_CONTEXT *parser_ctx) | |
1150 | { | |
1151 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1152 | ulong busNo = cmd->configureBus.busNo; | |
1153 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1154 | int rc = CONTROLVM_RESP_SUCCESS; | |
1155 | char s[99]; | |
1156 | ||
1157 | busNo = cmd->configureBus.busNo; | |
1158 | POSTCODE_LINUX_3(BUS_CONFIGURE_ENTRY_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1159 | ||
1160 | pBusInfo = findbus(&BusInfoList, busNo); | |
1161 | if (!pBusInfo) { | |
1162 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu invalid", | |
1163 | busNo); | |
1164 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1165 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1166 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1167 | goto Away; | |
12e364b9 KC |
1168 | } |
1169 | if (pBusInfo->state.created == 0) { | |
1170 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: Invalid bus %lu - not created yet", | |
1171 | busNo); | |
1172 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1173 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1174 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1175 | goto Away; | |
12e364b9 KC |
1176 | } |
1177 | /* TBD - add this check to other commands also... */ | |
1178 | if (pBusInfo->pendingMsgHdr.Id != CONTROLVM_INVALID) { | |
1179 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: bus %lu MsgId=%u outstanding", | |
1180 | busNo, (uint) pBusInfo->pendingMsgHdr.Id); | |
1181 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1182 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1183 | rc = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT; |
1184 | goto Away; | |
12e364b9 KC |
1185 | } |
1186 | ||
1187 | pBusInfo->partitionHandle = cmd->configureBus.guestHandle; | |
1188 | pBusInfo->partitionGuid = parser_id_get(parser_ctx); | |
1189 | parser_param_start(parser_ctx, PARSERSTRING_NAME); | |
1190 | pBusInfo->name = parser_string_get(parser_ctx); | |
1191 | ||
1192 | visorchannel_GUID_id(&pBusInfo->partitionGuid, s); | |
1193 | pBusInfo->procObject = | |
927c7927 | 1194 | visor_proc_CreateObject(PartitionType, s, (void *) (pBusInfo)); |
12e364b9 KC |
1195 | if (pBusInfo->procObject == NULL) { |
1196 | LOGERR("CONTROLVM_BUS_CONFIGURE Failed: busNo=%lu failed to create /proc entry", | |
1197 | busNo); | |
1198 | POSTCODE_LINUX_3(BUS_CONFIGURE_FAILURE_PC, busNo, | |
1199 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1200 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1201 | goto Away; | |
12e364b9 KC |
1202 | } |
1203 | POSTCODE_LINUX_3(BUS_CONFIGURE_EXIT_PC, busNo, POSTCODE_SEVERITY_INFO); | |
1204 | Away: | |
1205 | bus_epilog(busNo, CONTROLVM_BUS_CONFIGURE, &inmsg->hdr, | |
1206 | rc, inmsg->hdr.Flags.responseExpected == 1); | |
1207 | } | |
1208 | ||
1209 | static void | |
1210 | my_device_create(CONTROLVM_MESSAGE *inmsg) | |
1211 | { | |
1212 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1213 | ulong busNo = cmd->createDevice.busNo; | |
1214 | ulong devNo = cmd->createDevice.devNo; | |
1215 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1216 | VISORCHIPSET_BUS_INFO *pBusInfo = NULL; | |
1217 | int rc = CONTROLVM_RESP_SUCCESS; | |
1218 | ||
1219 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1220 | if (pDevInfo && (pDevInfo->state.created == 1)) { | |
1221 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu already exists", | |
1222 | busNo, devNo); | |
1223 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1224 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1225 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
1226 | goto Away; | |
12e364b9 KC |
1227 | } |
1228 | pBusInfo = findbus(&BusInfoList, busNo); | |
1229 | if (!pBusInfo) { | |
1230 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - out of range", | |
1231 | busNo); | |
1232 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1233 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1234 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1235 | goto Away; | |
12e364b9 KC |
1236 | } |
1237 | if (pBusInfo->state.created == 0) { | |
1238 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: Invalid bus %lu - not created yet", | |
1239 | busNo); | |
1240 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1241 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1242 | rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; |
1243 | goto Away; | |
12e364b9 | 1244 | } |
97a84f12 | 1245 | pDevInfo = kzalloc(sizeof(VISORCHIPSET_DEVICE_INFO), GFP_KERNEL); |
12e364b9 KC |
1246 | if (pDevInfo == NULL) { |
1247 | LOGERR("CONTROLVM_DEVICE_CREATE Failed: busNo=%lu, devNo=%lu kmaloc failed", | |
1248 | busNo, devNo); | |
1249 | POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, devNo, busNo, | |
1250 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1251 | rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; |
1252 | goto Away; | |
12e364b9 | 1253 | } |
97a84f12 | 1254 | |
12e364b9 KC |
1255 | INIT_LIST_HEAD(&pDevInfo->entry); |
1256 | pDevInfo->busNo = busNo; | |
1257 | pDevInfo->devNo = devNo; | |
1258 | pDevInfo->devInstGuid = cmd->createDevice.devInstGuid; | |
1259 | POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, devNo, busNo, | |
1260 | POSTCODE_SEVERITY_INFO); | |
1261 | ||
1262 | if (inmsg->hdr.Flags.testMessage == 1) | |
1263 | pDevInfo->chanInfo.addrType = ADDRTYPE_localTest; | |
1264 | else | |
1265 | pDevInfo->chanInfo.addrType = ADDRTYPE_localPhysical; | |
1266 | pDevInfo->chanInfo.channelAddr = cmd->createDevice.channelAddr; | |
1267 | pDevInfo->chanInfo.nChannelBytes = cmd->createDevice.channelBytes; | |
1268 | pDevInfo->chanInfo.channelTypeGuid = cmd->createDevice.dataTypeGuid; | |
1269 | pDevInfo->chanInfo.intr = cmd->createDevice.intr; | |
1270 | list_add(&pDevInfo->entry, &DevInfoList); | |
1271 | POSTCODE_LINUX_4(DEVICE_CREATE_EXIT_PC, devNo, busNo, | |
1272 | POSTCODE_SEVERITY_INFO); | |
1273 | Away: | |
1274 | /* get the bus and devNo for DiagPool channel */ | |
1275 | if (is_diagpool_channel(pDevInfo->chanInfo.channelTypeGuid)) { | |
1276 | g_diagpoolBusNo = busNo; | |
1277 | g_diagpoolDevNo = devNo; | |
1278 | LOGINF("CONTROLVM_DEVICE_CREATE for DiagPool channel: busNo=%lu, devNo=%lu", | |
1279 | g_diagpoolBusNo, g_diagpoolDevNo); | |
1280 | } | |
1281 | device_epilog(busNo, devNo, SegmentStateRunning, | |
1282 | CONTROLVM_DEVICE_CREATE, &inmsg->hdr, rc, | |
1283 | inmsg->hdr.Flags.responseExpected == 1, | |
1284 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1285 | } | |
1286 | ||
1287 | static void | |
1288 | my_device_changestate(CONTROLVM_MESSAGE *inmsg) | |
1289 | { | |
1290 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1291 | ulong busNo = cmd->deviceChangeState.busNo; | |
1292 | ulong devNo = cmd->deviceChangeState.devNo; | |
1293 | ULTRA_SEGMENT_STATE state = cmd->deviceChangeState.state; | |
1294 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1295 | int rc = CONTROLVM_RESP_SUCCESS; | |
1296 | ||
1297 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1298 | if (!pDevInfo) { | |
1299 | LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (doesn't exist)", | |
1300 | busNo, devNo); | |
1301 | POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo, | |
1302 | POSTCODE_SEVERITY_ERR); | |
22ad57ba KC |
1303 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
1304 | goto Away; | |
12e364b9 KC |
1305 | } |
1306 | if (pDevInfo->state.created == 0) { | |
1307 | LOGERR("CONTROLVM_DEVICE_CHANGESTATE Failed: busNo=%lu, devNo=%lu invalid (not created)", | |
1308 | busNo, devNo); | |
1309 | POSTCODE_LINUX_4(DEVICE_CHANGESTATE_FAILURE_PC, devNo, busNo, | |
1310 | POSTCODE_SEVERITY_ERR); | |
22ad57ba | 1311 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
12e364b9 KC |
1312 | } |
1313 | Away: | |
1314 | if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo) | |
1315 | device_epilog(busNo, devNo, state, CONTROLVM_DEVICE_CHANGESTATE, | |
1316 | &inmsg->hdr, rc, | |
1317 | inmsg->hdr.Flags.responseExpected == 1, | |
1318 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1319 | } | |
1320 | ||
1321 | static void | |
1322 | my_device_destroy(CONTROLVM_MESSAGE *inmsg) | |
1323 | { | |
1324 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg->cmd; | |
1325 | ulong busNo = cmd->destroyDevice.busNo; | |
1326 | ulong devNo = cmd->destroyDevice.devNo; | |
1327 | VISORCHIPSET_DEVICE_INFO *pDevInfo = NULL; | |
1328 | int rc = CONTROLVM_RESP_SUCCESS; | |
1329 | ||
1330 | pDevInfo = finddevice(&DevInfoList, busNo, devNo); | |
1331 | if (!pDevInfo) { | |
1332 | LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu invalid", | |
1333 | busNo, devNo); | |
22ad57ba KC |
1334 | rc = -CONTROLVM_RESP_ERROR_DEVICE_INVALID; |
1335 | goto Away; | |
12e364b9 KC |
1336 | } |
1337 | if (pDevInfo->state.created == 0) { | |
1338 | LOGERR("CONTROLVM_DEVICE_DESTROY Failed: busNo=%lu, devNo=%lu already destroyed", | |
1339 | busNo, devNo); | |
22ad57ba | 1340 | rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; |
12e364b9 KC |
1341 | } |
1342 | ||
1343 | Away: | |
1344 | if ((rc >= CONTROLVM_RESP_SUCCESS) && pDevInfo) | |
1345 | device_epilog(busNo, devNo, SegmentStateRunning, | |
1346 | CONTROLVM_DEVICE_DESTROY, &inmsg->hdr, rc, | |
1347 | inmsg->hdr.Flags.responseExpected == 1, | |
1348 | FOR_VISORBUS(pDevInfo->chanInfo.channelTypeGuid)); | |
1349 | } | |
1350 | ||
1351 | /* When provided with the physical address of the controlvm channel | |
1352 | * (phys_addr), the offset to the payload area we need to manage | |
1353 | * (offset), and the size of this payload area (bytes), fills in the | |
1354 | * CONTROLVM_PAYLOAD_INFO struct. Returns TRUE for success or FALSE | |
1355 | * for failure. | |
1356 | */ | |
1357 | static int | |
1358 | initialize_controlvm_payload_info(HOSTADDRESS phys_addr, U64 offset, U32 bytes, | |
1359 | CONTROLVM_PAYLOAD_INFO *info) | |
1360 | { | |
bd5b9b32 | 1361 | U8 __iomem *payload = NULL; |
12e364b9 KC |
1362 | int rc = CONTROLVM_RESP_SUCCESS; |
1363 | ||
1364 | if (info == NULL) { | |
1365 | LOGERR("HUH ? CONTROLVM_PAYLOAD_INIT Failed : Programmer check at %s:%d", | |
1366 | __FILE__, __LINE__); | |
22ad57ba KC |
1367 | rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; |
1368 | goto Away; | |
12e364b9 KC |
1369 | } |
1370 | memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO)); | |
1371 | if ((offset == 0) || (bytes == 0)) { | |
1372 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed: RequestPayloadOffset=%llu RequestPayloadBytes=%llu!", | |
1373 | (u64) offset, (u64) bytes); | |
22ad57ba KC |
1374 | rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; |
1375 | goto Away; | |
12e364b9 KC |
1376 | } |
1377 | payload = ioremap_cache(phys_addr + offset, bytes); | |
1378 | if (payload == NULL) { | |
1379 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed: ioremap_cache %llu for %llu bytes failed", | |
1380 | (u64) offset, (u64) bytes); | |
22ad57ba KC |
1381 | rc = -CONTROLVM_RESP_ERROR_IOREMAP_FAILED; |
1382 | goto Away; | |
12e364b9 KC |
1383 | } |
1384 | ||
1385 | info->offset = offset; | |
1386 | info->bytes = bytes; | |
1387 | info->ptr = payload; | |
1388 | LOGINF("offset=%llu, bytes=%lu, ptr=%p", | |
1389 | (u64) (info->offset), (ulong) (info->bytes), info->ptr); | |
1390 | ||
1391 | Away: | |
1392 | if (rc < 0) { | |
1393 | if (payload != NULL) { | |
1394 | iounmap(payload); | |
1395 | payload = NULL; | |
1396 | } | |
1397 | } | |
1398 | return rc; | |
1399 | } | |
1400 | ||
1401 | static void | |
1402 | destroy_controlvm_payload_info(CONTROLVM_PAYLOAD_INFO *info) | |
1403 | { | |
1404 | if (info->ptr != NULL) { | |
1405 | iounmap(info->ptr); | |
1406 | info->ptr = NULL; | |
1407 | } | |
1408 | memset(info, 0, sizeof(CONTROLVM_PAYLOAD_INFO)); | |
1409 | } | |
1410 | ||
1411 | static void | |
1412 | initialize_controlvm_payload(void) | |
1413 | { | |
1414 | HOSTADDRESS phys_addr = visorchannel_get_physaddr(ControlVm_channel); | |
1415 | U64 payloadOffset = 0; | |
1416 | U32 payloadBytes = 0; | |
1417 | if (visorchannel_read(ControlVm_channel, | |
1418 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
1419 | RequestPayloadOffset), | |
1420 | &payloadOffset, sizeof(payloadOffset)) < 0) { | |
1421 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!"); | |
1422 | POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC, | |
1423 | POSTCODE_SEVERITY_ERR); | |
1424 | return; | |
1425 | } | |
1426 | if (visorchannel_read(ControlVm_channel, | |
1427 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
1428 | RequestPayloadBytes), | |
1429 | &payloadBytes, sizeof(payloadBytes)) < 0) { | |
1430 | LOGERR("CONTROLVM_PAYLOAD_INIT Failed to read controlvm channel!"); | |
1431 | POSTCODE_LINUX_2(CONTROLVM_INIT_FAILURE_PC, | |
1432 | POSTCODE_SEVERITY_ERR); | |
1433 | return; | |
1434 | } | |
1435 | initialize_controlvm_payload_info(phys_addr, | |
1436 | payloadOffset, payloadBytes, | |
1437 | &ControlVm_payload_info); | |
1438 | } | |
1439 | ||
1440 | /* Send ACTION=online for DEVPATH=/sys/devices/platform/visorchipset. | |
1441 | * Returns CONTROLVM_RESP_xxx code. | |
1442 | */ | |
1443 | int | |
1444 | visorchipset_chipset_ready(void) | |
1445 | { | |
1446 | kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_ONLINE); | |
1447 | return CONTROLVM_RESP_SUCCESS; | |
1448 | } | |
1449 | EXPORT_SYMBOL_GPL(visorchipset_chipset_ready); | |
1450 | ||
1451 | int | |
1452 | visorchipset_chipset_selftest(void) | |
1453 | { | |
1454 | char env_selftest[20]; | |
1455 | char *envp[] = { env_selftest, NULL }; | |
1456 | sprintf(env_selftest, "SPARSP_SELFTEST=%d", 1); | |
1457 | kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE, | |
1458 | envp); | |
1459 | return CONTROLVM_RESP_SUCCESS; | |
1460 | } | |
1461 | EXPORT_SYMBOL_GPL(visorchipset_chipset_selftest); | |
1462 | ||
1463 | /* Send ACTION=offline for DEVPATH=/sys/devices/platform/visorchipset. | |
1464 | * Returns CONTROLVM_RESP_xxx code. | |
1465 | */ | |
1466 | int | |
1467 | visorchipset_chipset_notready(void) | |
1468 | { | |
1469 | kobject_uevent(&Visorchipset_platform_device.dev.kobj, KOBJ_OFFLINE); | |
1470 | return CONTROLVM_RESP_SUCCESS; | |
1471 | } | |
1472 | EXPORT_SYMBOL_GPL(visorchipset_chipset_notready); | |
1473 | ||
1474 | static void | |
1475 | chipset_ready(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1476 | { | |
1477 | int rc = visorchipset_chipset_ready(); | |
1478 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1479 | rc = -rc; | |
1480 | if (msgHdr->Flags.responseExpected && !visorchipset_holdchipsetready) | |
1481 | controlvm_respond(msgHdr, rc); | |
1482 | if (msgHdr->Flags.responseExpected && visorchipset_holdchipsetready) { | |
1483 | /* Send CHIPSET_READY response when all modules have been loaded | |
1484 | * and disks mounted for the partition | |
1485 | */ | |
1486 | g_ChipSetMsgHdr = *msgHdr; | |
1487 | LOGINF("Holding CHIPSET_READY response"); | |
1488 | } | |
1489 | } | |
1490 | ||
1491 | static void | |
1492 | chipset_selftest(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1493 | { | |
1494 | int rc = visorchipset_chipset_selftest(); | |
1495 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1496 | rc = -rc; | |
1497 | if (msgHdr->Flags.responseExpected) | |
1498 | controlvm_respond(msgHdr, rc); | |
1499 | } | |
1500 | ||
1501 | static void | |
1502 | chipset_notready(CONTROLVM_MESSAGE_HEADER *msgHdr) | |
1503 | { | |
1504 | int rc = visorchipset_chipset_notready(); | |
1505 | if (rc != CONTROLVM_RESP_SUCCESS) | |
1506 | rc = -rc; | |
1507 | if (msgHdr->Flags.responseExpected) | |
1508 | controlvm_respond(msgHdr, rc); | |
1509 | } | |
1510 | ||
1511 | /* This is your "one-stop" shop for grabbing the next message from the | |
1512 | * CONTROLVM_QUEUE_EVENT queue in the controlvm channel. | |
1513 | */ | |
1514 | static BOOL | |
1515 | read_controlvm_event(CONTROLVM_MESSAGE *msg) | |
1516 | { | |
1517 | if (visorchannel_signalremove(ControlVm_channel, | |
1518 | CONTROLVM_QUEUE_EVENT, msg)) { | |
1519 | /* got a message */ | |
1520 | if (msg->hdr.Flags.testMessage == 1) { | |
1521 | LOGERR("ignoring bad CONTROLVM_QUEUE_EVENT msg with controlvm_msg_id=0x%x because Flags.testMessage is nonsensical (=1)", msg->hdr.Id); | |
1522 | return FALSE; | |
1523 | } else | |
1524 | return TRUE; | |
1525 | } | |
1526 | return FALSE; | |
1527 | } | |
1528 | ||
1529 | /* | |
1530 | * The general parahotplug flow works as follows. The visorchipset | |
1531 | * driver receives a DEVICE_CHANGESTATE message from Command | |
1532 | * specifying a physical device to enable or disable. The CONTROLVM | |
1533 | * message handler calls parahotplug_process_message, which then adds | |
1534 | * the message to a global list and kicks off a udev event which | |
1535 | * causes a user level script to enable or disable the specified | |
1536 | * device. The udev script then writes to | |
1537 | * /proc/visorchipset/parahotplug, which causes parahotplug_proc_write | |
1538 | * to get called, at which point the appropriate CONTROLVM message is | |
1539 | * retrieved from the list and responded to. | |
1540 | */ | |
1541 | ||
1542 | #define PARAHOTPLUG_TIMEOUT_MS 2000 | |
1543 | ||
1544 | /* | |
1545 | * Generate unique int to match an outstanding CONTROLVM message with a | |
1546 | * udev script /proc response | |
1547 | */ | |
1548 | static int | |
1549 | parahotplug_next_id(void) | |
1550 | { | |
1551 | static atomic_t id = ATOMIC_INIT(0); | |
1552 | return atomic_inc_return(&id); | |
1553 | } | |
1554 | ||
1555 | /* | |
1556 | * Returns the time (in jiffies) when a CONTROLVM message on the list | |
1557 | * should expire -- PARAHOTPLUG_TIMEOUT_MS in the future | |
1558 | */ | |
1559 | static unsigned long | |
1560 | parahotplug_next_expiration(void) | |
1561 | { | |
1562 | return jiffies + PARAHOTPLUG_TIMEOUT_MS * HZ / 1000; | |
1563 | } | |
1564 | ||
1565 | /* | |
1566 | * Create a parahotplug_request, which is basically a wrapper for a | |
1567 | * CONTROLVM_MESSAGE that we can stick on a list | |
1568 | */ | |
1569 | static struct parahotplug_request * | |
1570 | parahotplug_request_create(CONTROLVM_MESSAGE *msg) | |
1571 | { | |
1572 | struct parahotplug_request *req = | |
1573 | kmalloc(sizeof(struct parahotplug_request), | |
1574 | GFP_KERNEL|__GFP_NORETRY); | |
1575 | if (req == NULL) | |
1576 | return NULL; | |
1577 | ||
1578 | req->id = parahotplug_next_id(); | |
1579 | req->expiration = parahotplug_next_expiration(); | |
1580 | req->msg = *msg; | |
1581 | ||
1582 | return req; | |
1583 | } | |
1584 | ||
1585 | /* | |
1586 | * Free a parahotplug_request. | |
1587 | */ | |
1588 | static void | |
1589 | parahotplug_request_destroy(struct parahotplug_request *req) | |
1590 | { | |
1591 | kfree(req); | |
1592 | } | |
1593 | ||
1594 | /* | |
1595 | * Cause uevent to run the user level script to do the disable/enable | |
1596 | * specified in (the CONTROLVM message in) the specified | |
1597 | * parahotplug_request | |
1598 | */ | |
1599 | static void | |
1600 | parahotplug_request_kickoff(struct parahotplug_request *req) | |
1601 | { | |
1602 | CONTROLVM_MESSAGE_PACKET *cmd = &req->msg.cmd; | |
1603 | char env_cmd[40], env_id[40], env_state[40], env_bus[40], env_dev[40], | |
1604 | env_func[40]; | |
1605 | char *envp[] = { | |
1606 | env_cmd, env_id, env_state, env_bus, env_dev, env_func, NULL | |
1607 | }; | |
1608 | ||
1609 | sprintf(env_cmd, "SPAR_PARAHOTPLUG=1"); | |
1610 | sprintf(env_id, "SPAR_PARAHOTPLUG_ID=%d", req->id); | |
1611 | sprintf(env_state, "SPAR_PARAHOTPLUG_STATE=%d", | |
1612 | cmd->deviceChangeState.state.Active); | |
1613 | sprintf(env_bus, "SPAR_PARAHOTPLUG_BUS=%d", | |
1614 | cmd->deviceChangeState.busNo); | |
1615 | sprintf(env_dev, "SPAR_PARAHOTPLUG_DEVICE=%d", | |
1616 | cmd->deviceChangeState.devNo >> 3); | |
1617 | sprintf(env_func, "SPAR_PARAHOTPLUG_FUNCTION=%d", | |
1618 | cmd->deviceChangeState.devNo & 0x7); | |
1619 | ||
1620 | LOGINF("parahotplug_request_kickoff: state=%d, bdf=%d/%d/%d, id=%u\n", | |
1621 | cmd->deviceChangeState.state.Active, | |
1622 | cmd->deviceChangeState.busNo, cmd->deviceChangeState.devNo >> 3, | |
1623 | cmd->deviceChangeState.devNo & 7, req->id); | |
1624 | ||
1625 | kobject_uevent_env(&Visorchipset_platform_device.dev.kobj, KOBJ_CHANGE, | |
1626 | envp); | |
1627 | } | |
1628 | ||
1629 | /* | |
1630 | * Remove any request from the list that's been on there too long and | |
1631 | * respond with an error. | |
1632 | */ | |
1633 | static void | |
1634 | parahotplug_process_list(void) | |
1635 | { | |
1636 | struct list_head *pos = NULL; | |
1637 | struct list_head *tmp = NULL; | |
1638 | ||
1639 | spin_lock(&Parahotplug_request_list_lock); | |
1640 | ||
1641 | list_for_each_safe(pos, tmp, &Parahotplug_request_list) { | |
1642 | struct parahotplug_request *req = | |
1643 | list_entry(pos, struct parahotplug_request, list); | |
1644 | if (time_after_eq(jiffies, req->expiration)) { | |
1645 | list_del(pos); | |
1646 | if (req->msg.hdr.Flags.responseExpected) | |
1647 | controlvm_respond_physdev_changestate( | |
1648 | &req->msg.hdr, | |
1649 | CONTROLVM_RESP_ERROR_DEVICE_UDEV_TIMEOUT, | |
1650 | req->msg.cmd.deviceChangeState.state); | |
1651 | parahotplug_request_destroy(req); | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | spin_unlock(&Parahotplug_request_list_lock); | |
1656 | } | |
1657 | ||
1658 | /* | |
1659 | * Called from the /proc handler, which means the user script has | |
1660 | * finished the enable/disable. Find the matching identifier, and | |
1661 | * respond to the CONTROLVM message with success. | |
1662 | */ | |
1663 | static int | |
1664 | parahotplug_request_complete(int id, U16 active) | |
1665 | { | |
1666 | struct list_head *pos = NULL; | |
1667 | struct list_head *tmp = NULL; | |
1668 | ||
1669 | spin_lock(&Parahotplug_request_list_lock); | |
1670 | ||
1671 | /* Look for a request matching "id". */ | |
1672 | list_for_each_safe(pos, tmp, &Parahotplug_request_list) { | |
1673 | struct parahotplug_request *req = | |
1674 | list_entry(pos, struct parahotplug_request, list); | |
1675 | if (req->id == id) { | |
1676 | /* Found a match. Remove it from the list and | |
1677 | * respond. | |
1678 | */ | |
1679 | list_del(pos); | |
1680 | spin_unlock(&Parahotplug_request_list_lock); | |
1681 | req->msg.cmd.deviceChangeState.state.Active = active; | |
1682 | if (req->msg.hdr.Flags.responseExpected) | |
1683 | controlvm_respond_physdev_changestate( | |
1684 | &req->msg.hdr, CONTROLVM_RESP_SUCCESS, | |
1685 | req->msg.cmd.deviceChangeState.state); | |
1686 | parahotplug_request_destroy(req); | |
1687 | return 0; | |
1688 | } | |
1689 | } | |
1690 | ||
1691 | spin_unlock(&Parahotplug_request_list_lock); | |
1692 | return -1; | |
1693 | } | |
1694 | ||
1695 | /* | |
1696 | * Enables or disables a PCI device by kicking off a udev script | |
1697 | */ | |
bd5b9b32 | 1698 | static void |
12e364b9 KC |
1699 | parahotplug_process_message(CONTROLVM_MESSAGE *inmsg) |
1700 | { | |
1701 | struct parahotplug_request *req; | |
1702 | ||
1703 | req = parahotplug_request_create(inmsg); | |
1704 | ||
1705 | if (req == NULL) { | |
1706 | LOGERR("parahotplug_process_message: couldn't allocate request"); | |
1707 | return; | |
1708 | } | |
1709 | ||
1710 | if (inmsg->cmd.deviceChangeState.state.Active) { | |
1711 | /* For enable messages, just respond with success | |
1712 | * right away. This is a bit of a hack, but there are | |
1713 | * issues with the early enable messages we get (with | |
1714 | * either the udev script not detecting that the device | |
1715 | * is up, or not getting called at all). Fortunately | |
1716 | * the messages that get lost don't matter anyway, as | |
1717 | * devices are automatically enabled at | |
1718 | * initialization. | |
1719 | */ | |
1720 | parahotplug_request_kickoff(req); | |
1721 | controlvm_respond_physdev_changestate(&inmsg->hdr, | |
1722 | CONTROLVM_RESP_SUCCESS, | |
1723 | inmsg->cmd. | |
1724 | deviceChangeState.state); | |
1725 | parahotplug_request_destroy(req); | |
1726 | } else { | |
1727 | /* For disable messages, add the request to the | |
1728 | * request list before kicking off the udev script. It | |
1729 | * won't get responded to until the script has | |
1730 | * indicated it's done. | |
1731 | */ | |
1732 | spin_lock(&Parahotplug_request_list_lock); | |
1733 | list_add_tail(&(req->list), &Parahotplug_request_list); | |
1734 | spin_unlock(&Parahotplug_request_list_lock); | |
1735 | ||
1736 | parahotplug_request_kickoff(req); | |
1737 | } | |
1738 | } | |
1739 | ||
1740 | /* | |
1741 | * Gets called when the udev script writes to | |
1742 | * /proc/visorchipset/parahotplug. Expects input in the form of "<id> | |
1743 | * <active>" where <id> is the identifier passed to the script that | |
1744 | * matches a request on the request list, and <active> is 0 or 1 | |
1745 | * indicating whether the device is now enabled or not. | |
1746 | */ | |
1747 | static ssize_t | |
1748 | parahotplug_proc_write(struct file *file, const char __user *buffer, | |
1749 | size_t count, loff_t *ppos) | |
1750 | { | |
1751 | char buf[64]; | |
1752 | uint id; | |
1753 | ushort active; | |
1754 | ||
1755 | if (count > sizeof(buf) - 1) { | |
1756 | LOGERR("parahotplug_proc_write: count (%d) exceeds size of buffer (%d)", | |
1757 | (int) count, (int) sizeof(buf)); | |
1758 | return -EINVAL; | |
1759 | } | |
1760 | if (copy_from_user(buf, buffer, count)) { | |
1761 | LOGERR("parahotplug_proc_write: copy_from_user failed"); | |
1762 | return -EFAULT; | |
1763 | } | |
1764 | buf[count] = '\0'; | |
1765 | ||
1766 | if (sscanf(buf, "%u %hu", &id, &active) != 2) { | |
1767 | id = 0; | |
1768 | active = 0; | |
1769 | } | |
1770 | ||
1771 | if (active != 1 && active != 0) { | |
1772 | LOGERR("parahotplug_proc_write: invalid active field"); | |
1773 | return -EINVAL; | |
1774 | } | |
1775 | ||
1776 | parahotplug_request_complete((int) id, (U16) active); | |
1777 | ||
1778 | return count; | |
1779 | } | |
1780 | ||
1781 | static const struct file_operations parahotplug_proc_fops = { | |
1782 | .owner = THIS_MODULE, | |
1783 | .read = visorchipset_proc_read_writeonly, | |
1784 | .write = parahotplug_proc_write, | |
1785 | }; | |
1786 | ||
1787 | /* Process a controlvm message. | |
1788 | * Return result: | |
1789 | * FALSE - this function will return FALSE only in the case where the | |
1790 | * controlvm message was NOT processed, but processing must be | |
1791 | * retried before reading the next controlvm message; a | |
1792 | * scenario where this can occur is when we need to throttle | |
1793 | * the allocation of memory in which to copy out controlvm | |
1794 | * payload data | |
1795 | * TRUE - processing of the controlvm message completed, | |
1796 | * either successfully or with an error. | |
1797 | */ | |
1798 | static BOOL | |
1799 | handle_command(CONTROLVM_MESSAGE inmsg, HOSTADDRESS channel_addr) | |
1800 | { | |
1801 | CONTROLVM_MESSAGE_PACKET *cmd = &inmsg.cmd; | |
1802 | U64 parametersAddr = 0; | |
1803 | U32 parametersBytes = 0; | |
1804 | PARSER_CONTEXT *parser_ctx = NULL; | |
1805 | BOOL isLocalAddr = FALSE; | |
1806 | CONTROLVM_MESSAGE ackmsg; | |
1807 | ||
1808 | /* create parsing context if necessary */ | |
1809 | isLocalAddr = (inmsg.hdr.Flags.testMessage == 1); | |
1810 | if (channel_addr == 0) { | |
1811 | LOGERR("HUH? channel_addr is 0!"); | |
1812 | return TRUE; | |
1813 | } | |
1814 | parametersAddr = channel_addr + inmsg.hdr.PayloadVmOffset; | |
1815 | parametersBytes = inmsg.hdr.PayloadBytes; | |
1816 | ||
1817 | /* Parameter and channel addresses within test messages actually lie | |
1818 | * within our OS-controlled memory. We need to know that, because it | |
1819 | * makes a difference in how we compute the virtual address. | |
1820 | */ | |
1821 | if (parametersAddr != 0 && parametersBytes != 0) { | |
1822 | BOOL retry = FALSE; | |
1823 | parser_ctx = | |
1824 | parser_init_byteStream(parametersAddr, parametersBytes, | |
1825 | isLocalAddr, &retry); | |
1826 | if (!parser_ctx) { | |
1827 | if (retry) { | |
1828 | LOGWRN("throttling to copy payload"); | |
1829 | return FALSE; | |
1830 | } | |
1831 | LOGWRN("parsing failed"); | |
1832 | LOGWRN("inmsg.hdr.Id=0x%lx", (ulong) inmsg.hdr.Id); | |
1833 | LOGWRN("parametersAddr=0x%llx", (u64) parametersAddr); | |
1834 | LOGWRN("parametersBytes=%lu", (ulong) parametersBytes); | |
1835 | LOGWRN("isLocalAddr=%d", isLocalAddr); | |
1836 | } | |
1837 | } | |
1838 | ||
1839 | if (!isLocalAddr) { | |
1840 | controlvm_init_response(&ackmsg, &inmsg.hdr, | |
1841 | CONTROLVM_RESP_SUCCESS); | |
1842 | if ((ControlVm_channel) | |
1843 | && | |
1844 | (!visorchannel_signalinsert | |
1845 | (ControlVm_channel, CONTROLVM_QUEUE_ACK, &ackmsg))) | |
1846 | LOGWRN("failed to send ACK failed"); | |
1847 | } | |
1848 | switch (inmsg.hdr.Id) { | |
1849 | case CONTROLVM_CHIPSET_INIT: | |
1850 | LOGINF("CHIPSET_INIT(#busses=%lu,#switches=%lu)", | |
1851 | (ulong) inmsg.cmd.initChipset.busCount, | |
1852 | (ulong) inmsg.cmd.initChipset.switchCount); | |
1853 | chipset_init(&inmsg); | |
1854 | break; | |
1855 | case CONTROLVM_BUS_CREATE: | |
1856 | LOGINF("BUS_CREATE(%lu,#devs=%lu)", | |
1857 | (ulong) cmd->createBus.busNo, | |
1858 | (ulong) cmd->createBus.deviceCount); | |
1859 | bus_create(&inmsg); | |
1860 | break; | |
1861 | case CONTROLVM_BUS_DESTROY: | |
1862 | LOGINF("BUS_DESTROY(%lu)", (ulong) cmd->destroyBus.busNo); | |
1863 | bus_destroy(&inmsg); | |
1864 | break; | |
1865 | case CONTROLVM_BUS_CONFIGURE: | |
1866 | LOGINF("BUS_CONFIGURE(%lu)", (ulong) cmd->configureBus.busNo); | |
1867 | bus_configure(&inmsg, parser_ctx); | |
1868 | break; | |
1869 | case CONTROLVM_DEVICE_CREATE: | |
1870 | LOGINF("DEVICE_CREATE(%lu,%lu)", | |
1871 | (ulong) cmd->createDevice.busNo, | |
1872 | (ulong) cmd->createDevice.devNo); | |
1873 | my_device_create(&inmsg); | |
1874 | break; | |
1875 | case CONTROLVM_DEVICE_CHANGESTATE: | |
1876 | if (cmd->deviceChangeState.flags.physicalDevice) { | |
1877 | LOGINF("DEVICE_CHANGESTATE for physical device (%lu,%lu, active=%lu)", | |
1878 | (ulong) cmd->deviceChangeState.busNo, | |
1879 | (ulong) cmd->deviceChangeState.devNo, | |
1880 | (ulong) cmd->deviceChangeState.state.Active); | |
1881 | parahotplug_process_message(&inmsg); | |
1882 | } else { | |
1883 | LOGINF("DEVICE_CHANGESTATE for virtual device (%lu,%lu, state.Alive=0x%lx)", | |
1884 | (ulong) cmd->deviceChangeState.busNo, | |
1885 | (ulong) cmd->deviceChangeState.devNo, | |
1886 | (ulong) cmd->deviceChangeState.state.Alive); | |
1887 | /* save the hdr and cmd structures for later use */ | |
1888 | /* when sending back the response to Command */ | |
1889 | my_device_changestate(&inmsg); | |
1890 | g_DiagMsgHdr = inmsg.hdr; | |
1891 | g_DeviceChangeStatePacket = inmsg.cmd; | |
1892 | break; | |
1893 | } | |
1894 | break; | |
1895 | case CONTROLVM_DEVICE_DESTROY: | |
1896 | LOGINF("DEVICE_DESTROY(%lu,%lu)", | |
1897 | (ulong) cmd->destroyDevice.busNo, | |
1898 | (ulong) cmd->destroyDevice.devNo); | |
1899 | my_device_destroy(&inmsg); | |
1900 | break; | |
1901 | case CONTROLVM_DEVICE_CONFIGURE: | |
1902 | LOGINF("DEVICE_CONFIGURE(%lu,%lu)", | |
1903 | (ulong) cmd->configureDevice.busNo, | |
1904 | (ulong) cmd->configureDevice.devNo); | |
1905 | /* no op for now, just send a respond that we passed */ | |
1906 | if (inmsg.hdr.Flags.responseExpected) | |
1907 | controlvm_respond(&inmsg.hdr, CONTROLVM_RESP_SUCCESS); | |
1908 | break; | |
1909 | case CONTROLVM_CHIPSET_READY: | |
1910 | LOGINF("CHIPSET_READY"); | |
1911 | chipset_ready(&inmsg.hdr); | |
1912 | break; | |
1913 | case CONTROLVM_CHIPSET_SELFTEST: | |
1914 | LOGINF("CHIPSET_SELFTEST"); | |
1915 | chipset_selftest(&inmsg.hdr); | |
1916 | break; | |
1917 | case CONTROLVM_CHIPSET_STOP: | |
1918 | LOGINF("CHIPSET_STOP"); | |
1919 | chipset_notready(&inmsg.hdr); | |
1920 | break; | |
1921 | default: | |
1922 | LOGERR("unrecognized controlvm cmd=%d", (int) inmsg.hdr.Id); | |
1923 | if (inmsg.hdr.Flags.responseExpected) | |
1924 | controlvm_respond(&inmsg.hdr, | |
1925 | -CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN); | |
1926 | break; | |
1927 | } | |
1928 | ||
1929 | if (parser_ctx != NULL) { | |
1930 | parser_done(parser_ctx); | |
1931 | parser_ctx = NULL; | |
1932 | } | |
1933 | return TRUE; | |
1934 | } | |
1935 | ||
1936 | static void | |
1937 | controlvm_periodic_work(struct work_struct *work) | |
1938 | { | |
1939 | VISORCHIPSET_CHANNEL_INFO chanInfo; | |
1940 | CONTROLVM_MESSAGE inmsg; | |
1941 | char s[99]; | |
1942 | BOOL gotACommand = FALSE; | |
1943 | BOOL handle_command_failed = FALSE; | |
1944 | static U64 Poll_Count; | |
1945 | ||
1946 | /* make sure visorbus server is registered for controlvm callbacks */ | |
1947 | if (visorchipset_serverregwait && !serverregistered) | |
097f4c19 | 1948 | goto Away; |
12e364b9 KC |
1949 | /* make sure visorclientbus server is regsitered for controlvm |
1950 | * callbacks | |
1951 | */ | |
1952 | if (visorchipset_clientregwait && !clientregistered) | |
097f4c19 | 1953 | goto Away; |
12e364b9 KC |
1954 | |
1955 | memset(&chanInfo, 0, sizeof(VISORCHIPSET_CHANNEL_INFO)); | |
1956 | if (!ControlVm_channel) { | |
1957 | HOSTADDRESS addr = controlvm_get_channel_address(); | |
1958 | if (addr != 0) { | |
1959 | ControlVm_channel = | |
1960 | visorchannel_create_with_lock | |
1961 | (addr, | |
1962 | sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL), | |
1963 | UltraControlvmChannelProtocolGuid); | |
1964 | if (ControlVm_channel == NULL) | |
1965 | LOGERR("failed to create controlvm channel"); | |
1966 | else if (ULTRA_CONTROLVM_CHANNEL_OK_CLIENT | |
1967 | (visorchannel_get_header(ControlVm_channel), | |
1968 | NULL)) { | |
1969 | LOGINF("Channel %s (ControlVm) discovered", | |
1970 | visorchannel_id(ControlVm_channel, s)); | |
1971 | initialize_controlvm_payload(); | |
1972 | } else { | |
1973 | LOGERR("controlvm channel is invalid"); | |
1974 | visorchannel_destroy(ControlVm_channel); | |
1975 | ControlVm_channel = NULL; | |
1976 | } | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | Poll_Count++; | |
1981 | if ((ControlVm_channel != NULL) || (Poll_Count >= 250)) | |
1982 | ; /* keep going */ | |
1983 | else | |
097f4c19 | 1984 | goto Away; |
12e364b9 KC |
1985 | |
1986 | /* Check events to determine if response to CHIPSET_READY | |
1987 | * should be sent | |
1988 | */ | |
1989 | if (visorchipset_holdchipsetready | |
1990 | && (g_ChipSetMsgHdr.Id != CONTROLVM_INVALID)) { | |
1991 | if (check_chipset_events() == 1) { | |
1992 | LOGINF("Sending CHIPSET_READY response"); | |
1993 | controlvm_respond(&g_ChipSetMsgHdr, 0); | |
1994 | clear_chipset_events(); | |
1995 | memset(&g_ChipSetMsgHdr, 0, | |
1996 | sizeof(CONTROLVM_MESSAGE_HEADER)); | |
1997 | } | |
1998 | } | |
1999 | ||
2000 | if (ControlVm_channel) { | |
2001 | while (visorchannel_signalremove(ControlVm_channel, | |
2002 | CONTROLVM_QUEUE_RESPONSE, | |
2003 | &inmsg)) { | |
2004 | if (inmsg.hdr.PayloadMaxBytes != 0) { | |
2005 | LOGERR("Payload of size %lu returned @%lu with unexpected message id %d.", | |
2006 | (ulong) inmsg.hdr.PayloadMaxBytes, | |
2007 | (ulong) inmsg.hdr.PayloadVmOffset, | |
2008 | inmsg.hdr.Id); | |
2009 | } | |
2010 | } | |
2011 | if (!gotACommand) { | |
2012 | if (ControlVm_Pending_Msg_Valid) { | |
2013 | /* we throttled processing of a prior | |
2014 | * msg, so try to process it again | |
2015 | * rather than reading a new one | |
2016 | */ | |
2017 | inmsg = ControlVm_Pending_Msg; | |
2018 | ControlVm_Pending_Msg_Valid = FALSE; | |
2019 | gotACommand = TRUE; | |
2020 | } else | |
2021 | gotACommand = read_controlvm_event(&inmsg); | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | handle_command_failed = FALSE; | |
2026 | while (gotACommand && (!handle_command_failed)) { | |
2027 | Most_recent_message_jiffies = jiffies; | |
2028 | if (ControlVm_channel) { | |
2029 | if (handle_command(inmsg, | |
2030 | visorchannel_get_physaddr | |
2031 | (ControlVm_channel))) | |
2032 | gotACommand = read_controlvm_event(&inmsg); | |
2033 | else { | |
2034 | /* this is a scenario where throttling | |
2035 | * is required, but probably NOT an | |
2036 | * error...; we stash the current | |
2037 | * controlvm msg so we will attempt to | |
2038 | * reprocess it on our next loop | |
2039 | */ | |
2040 | handle_command_failed = TRUE; | |
2041 | ControlVm_Pending_Msg = inmsg; | |
2042 | ControlVm_Pending_Msg_Valid = TRUE; | |
2043 | } | |
2044 | ||
2045 | } else { | |
2046 | handle_command(inmsg, 0); | |
2047 | gotACommand = FALSE; | |
2048 | } | |
2049 | } | |
2050 | ||
2051 | /* parahotplug_worker */ | |
2052 | parahotplug_process_list(); | |
2053 | ||
12e364b9 KC |
2054 | Away: |
2055 | ||
2056 | if (time_after(jiffies, | |
2057 | Most_recent_message_jiffies + (HZ * MIN_IDLE_SECONDS))) { | |
2058 | /* it's been longer than MIN_IDLE_SECONDS since we | |
2059 | * processed our last controlvm message; slow down the | |
2060 | * polling | |
2061 | */ | |
2062 | if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_SLOW) { | |
2063 | LOGINF("switched to slow controlvm polling"); | |
2064 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; | |
2065 | } | |
2066 | } else { | |
2067 | if (Poll_jiffies != POLLJIFFIES_CONTROLVMCHANNEL_FAST) { | |
2068 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; | |
2069 | LOGINF("switched to fast controlvm polling"); | |
2070 | } | |
2071 | } | |
2072 | ||
4b4b535e DY |
2073 | queue_delayed_work(Periodic_controlvm_workqueue, |
2074 | &Periodic_controlvm_work, Poll_jiffies); | |
12e364b9 KC |
2075 | } |
2076 | ||
2077 | static void | |
2078 | setup_crash_devices_work_queue(struct work_struct *work) | |
2079 | { | |
2080 | ||
2081 | CONTROLVM_MESSAGE localCrashCreateBusMsg; | |
2082 | CONTROLVM_MESSAGE localCrashCreateDevMsg; | |
2083 | CONTROLVM_MESSAGE msg; | |
2084 | HOSTADDRESS host_addr; | |
2085 | U32 localSavedCrashMsgOffset; | |
2086 | U16 localSavedCrashMsgCount; | |
2087 | ||
2088 | /* make sure visorbus server is registered for controlvm callbacks */ | |
2089 | if (visorchipset_serverregwait && !serverregistered) | |
097f4c19 | 2090 | goto Away; |
12e364b9 KC |
2091 | |
2092 | /* make sure visorclientbus server is regsitered for controlvm | |
2093 | * callbacks | |
2094 | */ | |
2095 | if (visorchipset_clientregwait && !clientregistered) | |
097f4c19 | 2096 | goto Away; |
12e364b9 KC |
2097 | |
2098 | POSTCODE_LINUX_2(CRASH_DEV_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
2099 | ||
2100 | /* send init chipset msg */ | |
2101 | msg.hdr.Id = CONTROLVM_CHIPSET_INIT; | |
2102 | msg.cmd.initChipset.busCount = 23; | |
2103 | msg.cmd.initChipset.switchCount = 0; | |
2104 | ||
2105 | chipset_init(&msg); | |
2106 | ||
2107 | host_addr = controlvm_get_channel_address(); | |
2108 | if (!host_addr) { | |
2109 | LOGERR("Huh? Host address is NULL"); | |
2110 | POSTCODE_LINUX_2(CRASH_DEV_HADDR_NULL, POSTCODE_SEVERITY_ERR); | |
2111 | return; | |
2112 | } | |
2113 | ||
2114 | ControlVm_channel = | |
2115 | visorchannel_create_with_lock | |
2116 | (host_addr, | |
2117 | sizeof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL), | |
2118 | UltraControlvmChannelProtocolGuid); | |
2119 | ||
2120 | if (ControlVm_channel == NULL) { | |
2121 | LOGERR("failed to create controlvm channel"); | |
2122 | POSTCODE_LINUX_2(CRASH_DEV_CONTROLVM_NULL, | |
2123 | POSTCODE_SEVERITY_ERR); | |
2124 | return; | |
2125 | } | |
2126 | ||
2127 | /* get saved message count */ | |
2128 | if (visorchannel_read(ControlVm_channel, | |
2129 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2130 | SavedCrashMsgCount), | |
2131 | &localSavedCrashMsgCount, sizeof(U16)) < 0) { | |
2132 | LOGERR("failed to get Saved Message Count"); | |
2133 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
2134 | POSTCODE_SEVERITY_ERR); | |
2135 | return; | |
2136 | } | |
2137 | ||
2138 | if (localSavedCrashMsgCount != CONTROLVM_CRASHMSG_MAX) { | |
2139 | LOGERR("Saved Message Count incorrect %d", | |
2140 | localSavedCrashMsgCount); | |
2141 | POSTCODE_LINUX_3(CRASH_DEV_COUNT_FAILURE_PC, | |
2142 | localSavedCrashMsgCount, | |
2143 | POSTCODE_SEVERITY_ERR); | |
2144 | return; | |
2145 | } | |
2146 | ||
2147 | /* get saved crash message offset */ | |
2148 | if (visorchannel_read(ControlVm_channel, | |
2149 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2150 | SavedCrashMsgOffset), | |
2151 | &localSavedCrashMsgOffset, sizeof(U32)) < 0) { | |
2152 | LOGERR("failed to get Saved Message Offset"); | |
2153 | POSTCODE_LINUX_2(CRASH_DEV_CTRL_RD_FAILURE_PC, | |
2154 | POSTCODE_SEVERITY_ERR); | |
2155 | return; | |
2156 | } | |
2157 | ||
2158 | /* read create device message for storage bus offset */ | |
2159 | if (visorchannel_read(ControlVm_channel, | |
2160 | localSavedCrashMsgOffset, | |
2161 | &localCrashCreateBusMsg, | |
2162 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
2163 | LOGERR("CRASH_DEV_RD_BUS_FAIULRE: Failed to read CrashCreateBusMsg!"); | |
2164 | POSTCODE_LINUX_2(CRASH_DEV_RD_BUS_FAIULRE_PC, | |
2165 | POSTCODE_SEVERITY_ERR); | |
2166 | return; | |
2167 | } | |
2168 | ||
2169 | /* read create device message for storage device */ | |
2170 | if (visorchannel_read(ControlVm_channel, | |
2171 | localSavedCrashMsgOffset + | |
2172 | sizeof(CONTROLVM_MESSAGE), | |
2173 | &localCrashCreateDevMsg, | |
2174 | sizeof(CONTROLVM_MESSAGE)) < 0) { | |
2175 | LOGERR("CRASH_DEV_RD_DEV_FAIULRE: Failed to read CrashCreateDevMsg!"); | |
2176 | POSTCODE_LINUX_2(CRASH_DEV_RD_DEV_FAIULRE_PC, | |
2177 | POSTCODE_SEVERITY_ERR); | |
2178 | return; | |
2179 | } | |
2180 | ||
2181 | /* reuse IOVM create bus message */ | |
2182 | if (localCrashCreateBusMsg.cmd.createBus.channelAddr != 0) | |
2183 | bus_create(&localCrashCreateBusMsg); | |
2184 | else { | |
2185 | LOGERR("CrashCreateBusMsg is null, no dump will be taken"); | |
2186 | POSTCODE_LINUX_2(CRASH_DEV_BUS_NULL_FAILURE_PC, | |
2187 | POSTCODE_SEVERITY_ERR); | |
2188 | return; | |
2189 | } | |
2190 | ||
2191 | /* reuse create device message for storage device */ | |
2192 | if (localCrashCreateDevMsg.cmd.createDevice.channelAddr != 0) | |
2193 | my_device_create(&localCrashCreateDevMsg); | |
2194 | else { | |
2195 | LOGERR("CrashCreateDevMsg is null, no dump will be taken"); | |
2196 | POSTCODE_LINUX_2(CRASH_DEV_DEV_NULL_FAILURE_PC, | |
2197 | POSTCODE_SEVERITY_ERR); | |
2198 | return; | |
2199 | } | |
2200 | LOGINF("Bus and device ready for dumping"); | |
2201 | POSTCODE_LINUX_2(CRASH_DEV_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2202 | return; | |
2203 | ||
2204 | Away: | |
2205 | ||
2206 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; | |
2207 | ||
4b4b535e DY |
2208 | queue_delayed_work(Periodic_controlvm_workqueue, |
2209 | &Periodic_controlvm_work, Poll_jiffies); | |
12e364b9 KC |
2210 | } |
2211 | ||
2212 | static void | |
2213 | bus_create_response(ulong busNo, int response) | |
2214 | { | |
2215 | bus_responder(CONTROLVM_BUS_CREATE, busNo, response); | |
2216 | } | |
2217 | ||
2218 | static void | |
2219 | bus_destroy_response(ulong busNo, int response) | |
2220 | { | |
2221 | bus_responder(CONTROLVM_BUS_DESTROY, busNo, response); | |
2222 | } | |
2223 | ||
2224 | static void | |
2225 | device_create_response(ulong busNo, ulong devNo, int response) | |
2226 | { | |
2227 | device_responder(CONTROLVM_DEVICE_CREATE, busNo, devNo, response); | |
2228 | } | |
2229 | ||
2230 | static void | |
2231 | device_destroy_response(ulong busNo, ulong devNo, int response) | |
2232 | { | |
2233 | device_responder(CONTROLVM_DEVICE_DESTROY, busNo, devNo, response); | |
2234 | } | |
2235 | ||
2236 | void | |
927c7927 | 2237 | visorchipset_device_pause_response(ulong busNo, ulong devNo, int response) |
12e364b9 KC |
2238 | { |
2239 | ||
2240 | device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, | |
2241 | busNo, devNo, response, | |
2242 | SegmentStateStandby); | |
2243 | } | |
927c7927 | 2244 | EXPORT_SYMBOL_GPL(visorchipset_device_pause_response); |
12e364b9 KC |
2245 | |
2246 | static void | |
2247 | device_resume_response(ulong busNo, ulong devNo, int response) | |
2248 | { | |
2249 | device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, | |
2250 | busNo, devNo, response, | |
2251 | SegmentStateRunning); | |
2252 | } | |
2253 | ||
2254 | BOOL | |
2255 | visorchipset_get_bus_info(ulong busNo, VISORCHIPSET_BUS_INFO *busInfo) | |
2256 | { | |
2257 | void *p = findbus(&BusInfoList, busNo); | |
2258 | if (!p) { | |
2259 | LOGERR("(%lu) failed", busNo); | |
2260 | return FALSE; | |
2261 | } | |
2262 | memcpy(busInfo, p, sizeof(VISORCHIPSET_BUS_INFO)); | |
2263 | return TRUE; | |
2264 | } | |
2265 | EXPORT_SYMBOL_GPL(visorchipset_get_bus_info); | |
2266 | ||
2267 | BOOL | |
2268 | visorchipset_set_bus_context(ulong busNo, void *context) | |
2269 | { | |
2270 | VISORCHIPSET_BUS_INFO *p = findbus(&BusInfoList, busNo); | |
2271 | if (!p) { | |
2272 | LOGERR("(%lu) failed", busNo); | |
2273 | return FALSE; | |
2274 | } | |
2275 | p->bus_driver_context = context; | |
2276 | return TRUE; | |
2277 | } | |
2278 | EXPORT_SYMBOL_GPL(visorchipset_set_bus_context); | |
2279 | ||
2280 | BOOL | |
2281 | visorchipset_get_device_info(ulong busNo, ulong devNo, | |
2282 | VISORCHIPSET_DEVICE_INFO *devInfo) | |
2283 | { | |
2284 | void *p = finddevice(&DevInfoList, busNo, devNo); | |
2285 | if (!p) { | |
2286 | LOGERR("(%lu,%lu) failed", busNo, devNo); | |
2287 | return FALSE; | |
2288 | } | |
2289 | memcpy(devInfo, p, sizeof(VISORCHIPSET_DEVICE_INFO)); | |
2290 | return TRUE; | |
2291 | } | |
2292 | EXPORT_SYMBOL_GPL(visorchipset_get_device_info); | |
2293 | ||
2294 | BOOL | |
2295 | visorchipset_set_device_context(ulong busNo, ulong devNo, void *context) | |
2296 | { | |
2297 | VISORCHIPSET_DEVICE_INFO *p = finddevice(&DevInfoList, busNo, devNo); | |
2298 | if (!p) { | |
2299 | LOGERR("(%lu,%lu) failed", busNo, devNo); | |
2300 | return FALSE; | |
2301 | } | |
2302 | p->bus_driver_context = context; | |
2303 | return TRUE; | |
2304 | } | |
2305 | EXPORT_SYMBOL_GPL(visorchipset_set_device_context); | |
2306 | ||
2307 | /* Generic wrapper function for allocating memory from a kmem_cache pool. | |
2308 | */ | |
2309 | void * | |
2310 | visorchipset_cache_alloc(struct kmem_cache *pool, BOOL ok_to_block, | |
2311 | char *fn, int ln) | |
2312 | { | |
2313 | gfp_t gfp; | |
2314 | void *p; | |
2315 | ||
2316 | if (ok_to_block) | |
2317 | gfp = GFP_KERNEL; | |
2318 | else | |
2319 | gfp = GFP_ATOMIC; | |
2320 | /* __GFP_NORETRY means "ok to fail", meaning | |
2321 | * kmem_cache_alloc() can return NULL, implying the caller CAN | |
2322 | * cope with failure. If you do NOT specify __GFP_NORETRY, | |
2323 | * Linux will go to extreme measures to get memory for you | |
2324 | * (like, invoke oom killer), which will probably cripple the | |
2325 | * system. | |
2326 | */ | |
2327 | gfp |= __GFP_NORETRY; | |
2328 | p = kmem_cache_alloc(pool, gfp); | |
2329 | if (!p) { | |
2330 | LOGERR("kmem_cache_alloc failed early @%s:%d\n", fn, ln); | |
2331 | return NULL; | |
2332 | } | |
2333 | atomic_inc(&Visorchipset_cache_buffers_in_use); | |
2334 | return p; | |
2335 | } | |
2336 | ||
2337 | /* Generic wrapper function for freeing memory from a kmem_cache pool. | |
2338 | */ | |
2339 | void | |
2340 | visorchipset_cache_free(struct kmem_cache *pool, void *p, char *fn, int ln) | |
2341 | { | |
2342 | if (!p) { | |
2343 | LOGERR("NULL pointer @%s:%d\n", fn, ln); | |
2344 | return; | |
2345 | } | |
2346 | atomic_dec(&Visorchipset_cache_buffers_in_use); | |
2347 | kmem_cache_free(pool, p); | |
2348 | } | |
2349 | ||
2350 | #define gettoken(bufp) strsep(bufp, " -\t\n") | |
2351 | ||
2352 | static ssize_t | |
2353 | chipset_proc_write(struct file *file, const char __user *buffer, | |
2354 | size_t count, loff_t *ppos) | |
2355 | { | |
2356 | char buf[512]; | |
2357 | char *token, *p; | |
2358 | ||
2359 | if (count > sizeof(buf) - 1) { | |
2360 | LOGERR("chipset_proc_write: count (%d) exceeds size of buffer (%d)", | |
2361 | (int) count, (int) sizeof(buffer)); | |
2362 | return -EINVAL; | |
2363 | } | |
2364 | if (copy_from_user(buf, buffer, count)) { | |
2365 | LOGERR("chipset_proc_write: copy_from_user failed"); | |
2366 | return -EFAULT; | |
2367 | } | |
2368 | buf[count] = '\0'; | |
2369 | ||
2370 | p = buf; | |
2371 | token = gettoken(&p); | |
2372 | ||
2373 | if (strcmp(token, "CALLHOMEDISK_MOUNTED") == 0) { | |
2374 | token = gettoken(&p); | |
2375 | /* The Call Home Disk has been mounted */ | |
2376 | if (strcmp(token, "0") == 0) | |
2377 | chipset_events[0] = 1; | |
2378 | } else if (strcmp(token, "MODULES_LOADED") == 0) { | |
2379 | token = gettoken(&p); | |
2380 | /* All modules for the partition have been loaded */ | |
2381 | if (strcmp(token, "0") == 0) | |
2382 | chipset_events[1] = 1; | |
2383 | } else if (token == NULL) { | |
2384 | /* No event specified */ | |
2385 | LOGERR("No event was specified to send CHIPSET_READY response"); | |
2386 | return -1; | |
2387 | } else { | |
2388 | /* Unsupported event specified */ | |
2389 | LOGERR("%s is an invalid event for sending CHIPSET_READY response", token); | |
2390 | return -1; | |
2391 | } | |
2392 | ||
2393 | return count; | |
2394 | } | |
2395 | ||
2396 | static ssize_t | |
2397 | visorchipset_proc_read_writeonly(struct file *file, char __user *buf, | |
2398 | size_t len, loff_t *offset) | |
2399 | { | |
2400 | return 0; | |
2401 | } | |
2402 | ||
2403 | /** | |
2404 | * Reads the InstallationError, InstallationTextId, | |
2405 | * InstallationRemainingSteps fields of ControlVMChannel. | |
2406 | */ | |
2407 | static ssize_t | |
2408 | proc_read_installer(struct file *file, char __user *buf, | |
2409 | size_t len, loff_t *offset) | |
2410 | { | |
2411 | int length = 0; | |
2412 | U16 remainingSteps; | |
2413 | U32 error, textId; | |
2414 | char *vbuf; | |
2415 | loff_t pos = *offset; | |
2416 | ||
b0e27960 SL |
2417 | if (!ControlVm_channel) |
2418 | return -ENODEV; | |
2419 | ||
12e364b9 KC |
2420 | if (pos < 0) |
2421 | return -EINVAL; | |
2422 | ||
2423 | if (pos > 0 || !len) | |
2424 | return 0; | |
2425 | ||
2426 | vbuf = kzalloc(len, GFP_KERNEL); | |
2427 | if (!vbuf) | |
2428 | return -ENOMEM; | |
2429 | ||
2430 | visorchannel_read(ControlVm_channel, | |
2431 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2432 | InstallationRemainingSteps), &remainingSteps, | |
2433 | sizeof(U16)); | |
2434 | visorchannel_read(ControlVm_channel, | |
2435 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2436 | InstallationError), &error, sizeof(U32)); | |
2437 | visorchannel_read(ControlVm_channel, | |
2438 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2439 | InstallationTextId), &textId, sizeof(U32)); | |
2440 | ||
2441 | length = sprintf(vbuf, "%u %u %u\n", remainingSteps, error, textId); | |
2442 | if (copy_to_user(buf, vbuf, length)) { | |
2443 | kfree(vbuf); | |
2444 | return -EFAULT; | |
2445 | } | |
2446 | ||
2447 | kfree(vbuf); | |
2448 | *offset += length; | |
2449 | return length; | |
2450 | } | |
2451 | ||
2452 | /** | |
2453 | * Writes to the InstallationError, InstallationTextId, | |
2454 | * InstallationRemainingSteps fields of | |
2455 | * ControlVMChannel. | |
2456 | * Input: RemainingSteps Error TextId | |
2457 | * Limit 32 characters input | |
2458 | */ | |
2459 | #define UINT16_MAX (65535U) | |
2460 | #define UINT32_MAX (4294967295U) | |
2461 | static ssize_t | |
2462 | proc_write_installer(struct file *file, | |
2463 | const char __user *buffer, size_t count, loff_t *ppos) | |
2464 | { | |
2465 | char buf[32]; | |
2466 | U16 remainingSteps; | |
2467 | U32 error, textId; | |
2468 | ||
b0e27960 SL |
2469 | if (!ControlVm_channel) |
2470 | return -ENODEV; | |
2471 | ||
12e364b9 KC |
2472 | /* Check to make sure there is no buffer overflow */ |
2473 | if (count > (sizeof(buf) - 1)) | |
2474 | return -EINVAL; | |
2475 | ||
2476 | if (copy_from_user(buf, buffer, count)) { | |
2477 | WARN(1, "Error copying from user space\n"); | |
2478 | return -EFAULT; | |
2479 | } | |
2480 | ||
2481 | if (sscanf(buf, "%hu %i %i", &remainingSteps, &error, &textId) != 3) { | |
2482 | remainingSteps = UINT16_MAX; | |
2483 | error = UINT32_MAX; | |
2484 | textId = UINT32_MAX; | |
2485 | } | |
2486 | ||
2487 | if (remainingSteps != UINT16_MAX) { | |
2488 | if (visorchannel_write | |
2489 | (ControlVm_channel, | |
2490 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2491 | InstallationRemainingSteps), &remainingSteps, | |
2492 | sizeof(U16)) < 0) | |
2493 | WARN(1, "Installation Status Write Failed - Write function error - RemainingSteps = %d\n", | |
2494 | remainingSteps); | |
2495 | } | |
2496 | ||
2497 | if (error != UINT32_MAX) { | |
2498 | if (visorchannel_write | |
2499 | (ControlVm_channel, | |
2500 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2501 | InstallationError), &error, sizeof(U32)) < 0) | |
2502 | WARN(1, "Installation Status Write Failed - Write function error - Error = %d\n", | |
2503 | error); | |
2504 | } | |
2505 | ||
2506 | if (textId != UINT32_MAX) { | |
2507 | if (visorchannel_write | |
2508 | (ControlVm_channel, | |
2509 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2510 | InstallationTextId), &textId, sizeof(U32)) < 0) | |
2511 | WARN(1, "Installation Status Write Failed - Write function error - TextId = %d\n", | |
2512 | textId); | |
2513 | } | |
2514 | ||
2515 | /* So this function isn't called multiple times, must return | |
2516 | * size of buffer | |
2517 | */ | |
2518 | return count; | |
2519 | } | |
2520 | ||
2521 | /** | |
2522 | * Reads the ToolAction field of ControlVMChannel. | |
2523 | */ | |
2524 | static ssize_t | |
2525 | proc_read_toolaction(struct file *file, char __user *buf, | |
2526 | size_t len, loff_t *offset) | |
2527 | { | |
2528 | int length = 0; | |
2529 | U8 toolAction; | |
2530 | char *vbuf; | |
2531 | loff_t pos = *offset; | |
2532 | ||
b0e27960 SL |
2533 | if (!ControlVm_channel) |
2534 | return -ENODEV; | |
2535 | ||
12e364b9 KC |
2536 | if (pos < 0) |
2537 | return -EINVAL; | |
2538 | ||
2539 | if (pos > 0 || !len) | |
2540 | return 0; | |
2541 | ||
2542 | vbuf = kzalloc(len, GFP_KERNEL); | |
2543 | if (!vbuf) | |
2544 | return -ENOMEM; | |
2545 | ||
2546 | visorchannel_read(ControlVm_channel, | |
2547 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2548 | ToolAction), &toolAction, sizeof(U8)); | |
2549 | ||
2550 | length = sprintf(vbuf, "%u\n", toolAction); | |
2551 | if (copy_to_user(buf, vbuf, length)) { | |
2552 | kfree(vbuf); | |
2553 | return -EFAULT; | |
2554 | } | |
2555 | ||
2556 | kfree(vbuf); | |
2557 | *offset += length; | |
2558 | return length; | |
2559 | } | |
2560 | ||
2561 | /** | |
2562 | * Writes to the ToolAction field of ControlVMChannel. | |
2563 | * Input: ToolAction | |
2564 | * Limit 3 characters input | |
2565 | */ | |
2566 | #define UINT8_MAX (255U) | |
2567 | static ssize_t | |
2568 | proc_write_toolaction(struct file *file, | |
2569 | const char __user *buffer, size_t count, loff_t *ppos) | |
2570 | { | |
2571 | char buf[3]; | |
2572 | U8 toolAction; | |
2573 | ||
b0e27960 SL |
2574 | if (!ControlVm_channel) |
2575 | return -ENODEV; | |
2576 | ||
12e364b9 KC |
2577 | /* Check to make sure there is no buffer overflow */ |
2578 | if (count > (sizeof(buf) - 1)) | |
2579 | return -EINVAL; | |
2580 | ||
2581 | if (copy_from_user(buf, buffer, count)) { | |
2582 | WARN(1, "Error copying from user space\n"); | |
2583 | return -EFAULT; | |
2584 | } | |
2585 | ||
2586 | if (sscanf(buf, "%hhd", &toolAction) != 1) | |
2587 | toolAction = UINT8_MAX; | |
2588 | ||
2589 | if (toolAction != UINT8_MAX) { | |
2590 | if (visorchannel_write | |
2591 | (ControlVm_channel, | |
2592 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, ToolAction), | |
2593 | &toolAction, sizeof(U8)) < 0) | |
2594 | WARN(1, "Installation ToolAction Write Failed - ToolAction = %d\n", | |
2595 | toolAction); | |
2596 | } | |
2597 | ||
2598 | /* So this function isn't called multiple times, must return | |
2599 | * size of buffer | |
2600 | */ | |
2601 | return count; | |
2602 | } | |
2603 | ||
2604 | /** | |
2605 | * Reads the EfiSparIndication.BootToTool field of ControlVMChannel. | |
2606 | */ | |
2607 | static ssize_t | |
2608 | proc_read_bootToTool(struct file *file, char __user *buf, | |
2609 | size_t len, loff_t *offset) | |
2610 | { | |
2611 | int length = 0; | |
2612 | ULTRA_EFI_SPAR_INDICATION efiSparIndication; | |
2613 | char *vbuf; | |
2614 | loff_t pos = *offset; | |
2615 | ||
b0e27960 SL |
2616 | if (!ControlVm_channel) |
2617 | return -ENODEV; | |
2618 | ||
12e364b9 KC |
2619 | if (pos < 0) |
2620 | return -EINVAL; | |
2621 | ||
2622 | if (pos > 0 || !len) | |
2623 | return 0; | |
2624 | ||
2625 | vbuf = kzalloc(len, GFP_KERNEL); | |
2626 | if (!vbuf) | |
2627 | return -ENOMEM; | |
2628 | ||
2629 | visorchannel_read(ControlVm_channel, | |
2630 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, | |
2631 | EfiSparIndication), &efiSparIndication, | |
2632 | sizeof(ULTRA_EFI_SPAR_INDICATION)); | |
2633 | ||
2634 | length = sprintf(vbuf, "%d\n", (int) efiSparIndication.BootToTool); | |
2635 | if (copy_to_user(buf, vbuf, length)) { | |
2636 | kfree(vbuf); | |
2637 | return -EFAULT; | |
2638 | } | |
2639 | ||
2640 | kfree(vbuf); | |
2641 | *offset += length; | |
2642 | return length; | |
2643 | } | |
2644 | ||
2645 | /** | |
2646 | * Writes to the EfiSparIndication.BootToTool field of ControlVMChannel. | |
2647 | * Input: 1 or 0 (1 being on, 0 being off) | |
2648 | */ | |
2649 | static ssize_t | |
2650 | proc_write_bootToTool(struct file *file, | |
2651 | const char __user *buffer, size_t count, loff_t *ppos) | |
2652 | { | |
2653 | char buf[3]; | |
2654 | int inputVal; | |
2655 | ULTRA_EFI_SPAR_INDICATION efiSparIndication; | |
2656 | ||
b0e27960 SL |
2657 | if (!ControlVm_channel) |
2658 | return -ENODEV; | |
2659 | ||
12e364b9 KC |
2660 | /* Check to make sure there is no buffer overflow */ |
2661 | if (count > (sizeof(buf) - 1)) | |
2662 | return -EINVAL; | |
2663 | ||
2664 | if (copy_from_user(buf, buffer, count)) { | |
2665 | WARN(1, "Error copying from user space\n"); | |
2666 | return -EFAULT; | |
2667 | } | |
2668 | ||
2669 | if (sscanf(buf, "%i", &inputVal) != 1) | |
2670 | inputVal = 0; | |
2671 | ||
2672 | efiSparIndication.BootToTool = (inputVal == 1 ? 1 : 0); | |
2673 | ||
2674 | if (visorchannel_write | |
2675 | (ControlVm_channel, | |
2676 | offsetof(ULTRA_CONTROLVM_CHANNEL_PROTOCOL, EfiSparIndication), | |
2677 | &efiSparIndication, sizeof(ULTRA_EFI_SPAR_INDICATION)) < 0) | |
2678 | printk | |
2679 | ("Installation BootToTool Write Failed - BootToTool = %d\n", | |
2680 | (int) efiSparIndication.BootToTool); | |
2681 | ||
2682 | /* So this function isn't called multiple times, must return | |
2683 | * size of buffer | |
2684 | */ | |
2685 | return count; | |
2686 | } | |
2687 | ||
2688 | static const struct file_operations chipset_proc_fops = { | |
2689 | .owner = THIS_MODULE, | |
2690 | .read = visorchipset_proc_read_writeonly, | |
2691 | .write = chipset_proc_write, | |
2692 | }; | |
2693 | ||
2694 | static int __init | |
2695 | visorchipset_init(void) | |
2696 | { | |
2697 | int rc = 0, x = 0; | |
2698 | struct proc_dir_entry *installer_file; | |
2699 | struct proc_dir_entry *toolaction_file; | |
2700 | struct proc_dir_entry *bootToTool_file; | |
2701 | ||
2702 | LOGINF("chipset driver version %s loaded", VERSION); | |
2703 | /* process module options */ | |
2704 | POSTCODE_LINUX_2(DRIVER_ENTRY_PC, POSTCODE_SEVERITY_INFO); | |
2705 | ||
2706 | LOGINF("option - testvnic=%d", visorchipset_testvnic); | |
2707 | LOGINF("option - testvnicclient=%d", visorchipset_testvnicclient); | |
2708 | LOGINF("option - testmsg=%d", visorchipset_testmsg); | |
2709 | LOGINF("option - testteardown=%d", visorchipset_testteardown); | |
2710 | LOGINF("option - major=%d", visorchipset_major); | |
2711 | LOGINF("option - serverregwait=%d", visorchipset_serverregwait); | |
2712 | LOGINF("option - clientregwait=%d", visorchipset_clientregwait); | |
2713 | LOGINF("option - holdchipsetready=%d", visorchipset_holdchipsetready); | |
2714 | ||
2715 | memset(&BusDev_Server_Notifiers, 0, sizeof(BusDev_Server_Notifiers)); | |
2716 | memset(&BusDev_Client_Notifiers, 0, sizeof(BusDev_Client_Notifiers)); | |
2717 | memset(&ControlVm_payload_info, 0, sizeof(ControlVm_payload_info)); | |
2718 | memset(&LiveDump_info, 0, sizeof(LiveDump_info)); | |
2719 | atomic_set(&LiveDump_info.buffers_in_use, 0); | |
2720 | ||
9f8d0e8b KC |
2721 | if (visorchipset_testvnic) { |
2722 | ERRDRV("testvnic option no longer supported: (status = %d)\n", | |
2723 | x); | |
2724 | POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, x, DIAG_SEVERITY_ERR); | |
2725 | rc = x; | |
2726 | goto Away; | |
2727 | } | |
12e364b9 KC |
2728 | |
2729 | controlvm_init(); | |
2730 | MajorDev = MKDEV(visorchipset_major, 0); | |
9f8d0e8b | 2731 | rc = visorchipset_file_init(MajorDev, &ControlVm_channel); |
4cb005a9 KC |
2732 | if (rc < 0) { |
2733 | ERRDRV("visorchipset_file_init(MajorDev, &ControlVm_channel): error (status=%d)\n", rc); | |
2734 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2735 | goto Away; | |
2736 | } | |
9f8d0e8b | 2737 | |
12e364b9 KC |
2738 | proc_Init(); |
2739 | memset(PartitionPropertyNames, 0, sizeof(PartitionPropertyNames)); | |
2740 | memset(ControlVmPropertyNames, 0, sizeof(ControlVmPropertyNames)); | |
2741 | InitPartitionProperties(); | |
2742 | InitControlVmProperties(); | |
2743 | ||
927c7927 KC |
2744 | PartitionType = visor_proc_CreateType(ProcDir, PartitionTypeNames, |
2745 | (const char **) | |
2746 | PartitionPropertyNames, | |
2747 | &show_partition_property); | |
12e364b9 | 2748 | ControlVmType = |
927c7927 KC |
2749 | visor_proc_CreateType(ProcDir, ControlVmTypeNames, |
2750 | (const char **) ControlVmPropertyNames, | |
2751 | &show_controlvm_property); | |
12e364b9 | 2752 | |
927c7927 | 2753 | ControlVmObject = visor_proc_CreateObject(ControlVmType, NULL, NULL); |
12e364b9 KC |
2754 | |
2755 | /* Setup Installation fields */ | |
2756 | installer_file = proc_create("installer", 0644, ProcDir, | |
2757 | &proc_installer_fops); | |
2758 | /* Setup the ToolAction field */ | |
2759 | toolaction_file = proc_create("toolaction", 0644, ProcDir, | |
2760 | &proc_toolaction_fops); | |
2761 | /* Setup the BootToTool field */ | |
2762 | bootToTool_file = proc_create("boottotool", 0644, ProcDir, | |
2763 | &proc_bootToTool_fops); | |
2764 | ||
2765 | memset(&g_DiagMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2766 | ||
2767 | chipset_proc_dir = proc_create(VISORCHIPSET_CHIPSET_PROC_ENTRY_FN, | |
2768 | 0644, ProcDir, &chipset_proc_fops); | |
2769 | memset(&g_ChipSetMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2770 | ||
2771 | parahotplug_proc_dir = | |
2772 | proc_create(VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN, 0200, | |
2773 | ProcDir, ¶hotplug_proc_fops); | |
2774 | memset(&g_DelDumpMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2775 | ||
2776 | if (filexfer_constructor(sizeof(struct putfile_request)) < 0) { | |
4cb005a9 KC |
2777 | ERRDRV("filexfer_constructor failed: (status=-1)\n"); |
2778 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2779 | rc = -1; | |
2780 | goto Away; | |
12e364b9 KC |
2781 | } |
2782 | Putfile_buffer_list_pool = | |
2783 | kmem_cache_create(Putfile_buffer_list_pool_name, | |
2784 | sizeof(struct putfile_buffer_entry), | |
2785 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
2786 | if (!Putfile_buffer_list_pool) { | |
4cb005a9 KC |
2787 | ERRDRV("failed to alloc Putfile_buffer_list_pool: (status=-1)\n"); |
2788 | POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2789 | rc = -1; | |
2790 | goto Away; | |
12e364b9 KC |
2791 | } |
2792 | if (visorchipset_disable_controlvm) { | |
2793 | LOGINF("visorchipset_init:controlvm disabled"); | |
2794 | } else { | |
2795 | /* if booting in a crash kernel */ | |
2796 | if (visorchipset_crash_kernel) | |
2797 | INIT_DELAYED_WORK(&Periodic_controlvm_work, | |
2798 | setup_crash_devices_work_queue); | |
2799 | else | |
2800 | INIT_DELAYED_WORK(&Periodic_controlvm_work, | |
2801 | controlvm_periodic_work); | |
2802 | Periodic_controlvm_workqueue = | |
2803 | create_singlethread_workqueue("visorchipset_controlvm"); | |
2804 | ||
4cb005a9 KC |
2805 | if (Periodic_controlvm_workqueue == NULL) { |
2806 | ERRDRV("cannot create controlvm workqueue: (status=%d)\n", | |
2807 | -ENOMEM); | |
2808 | POSTCODE_LINUX_2(CREATE_WORKQUEUE_FAILED_PC, | |
2809 | DIAG_SEVERITY_ERR); | |
2810 | rc = -ENOMEM; | |
2811 | goto Away; | |
2812 | } | |
12e364b9 KC |
2813 | Most_recent_message_jiffies = jiffies; |
2814 | Poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; | |
9f8d0e8b KC |
2815 | rc = queue_delayed_work(Periodic_controlvm_workqueue, |
2816 | &Periodic_controlvm_work, Poll_jiffies); | |
4cb005a9 KC |
2817 | if (rc < 0) { |
2818 | ERRDRV("queue_delayed_work(Periodic_controlvm_workqueue, &Periodic_controlvm_work, Poll_jiffies): error (status=%d)\n", rc); | |
2819 | POSTCODE_LINUX_2(QUEUE_DELAYED_WORK_PC, | |
2820 | DIAG_SEVERITY_ERR); | |
2821 | goto Away; | |
2822 | } | |
9f8d0e8b | 2823 | |
12e364b9 KC |
2824 | } |
2825 | ||
2826 | Visorchipset_platform_device.dev.devt = MajorDev; | |
4cb005a9 KC |
2827 | if (platform_device_register(&Visorchipset_platform_device) < 0) { |
2828 | ERRDRV("platform_device_register(visorchipset) failed: (status=-1)\n"); | |
2829 | POSTCODE_LINUX_2(DEVICE_REGISTER_FAILURE_PC, DIAG_SEVERITY_ERR); | |
2830 | rc = -1; | |
2831 | goto Away; | |
2832 | } | |
12e364b9 KC |
2833 | LOGINF("visorchipset device created"); |
2834 | POSTCODE_LINUX_2(CHIPSET_INIT_SUCCESS_PC, POSTCODE_SEVERITY_INFO); | |
22ad57ba | 2835 | rc = 0; |
12e364b9 | 2836 | Away: |
12e364b9 KC |
2837 | if (rc) { |
2838 | LOGERR("visorchipset_init failed"); | |
2839 | POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, rc, | |
2840 | POSTCODE_SEVERITY_ERR); | |
2841 | } | |
2842 | return rc; | |
2843 | } | |
2844 | ||
2845 | static void | |
2846 | visorchipset_exit(void) | |
2847 | { | |
2848 | char s[99]; | |
2849 | POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2850 | ||
2851 | if (visorchipset_disable_controlvm) { | |
2852 | ; | |
2853 | } else { | |
2854 | cancel_delayed_work(&Periodic_controlvm_work); | |
2855 | flush_workqueue(Periodic_controlvm_workqueue); | |
2856 | destroy_workqueue(Periodic_controlvm_workqueue); | |
2857 | Periodic_controlvm_workqueue = NULL; | |
2858 | destroy_controlvm_payload_info(&ControlVm_payload_info); | |
2859 | } | |
2860 | Test_Vnic_channel = NULL; | |
2861 | if (Putfile_buffer_list_pool) { | |
2862 | kmem_cache_destroy(Putfile_buffer_list_pool); | |
2863 | Putfile_buffer_list_pool = NULL; | |
2864 | } | |
2865 | filexfer_destructor(); | |
2866 | if (ControlVmObject) { | |
927c7927 | 2867 | visor_proc_DestroyObject(ControlVmObject); |
12e364b9 KC |
2868 | ControlVmObject = NULL; |
2869 | } | |
2870 | cleanup_controlvm_structures(); | |
2871 | ||
2872 | if (ControlVmType) { | |
927c7927 | 2873 | visor_proc_DestroyType(ControlVmType); |
12e364b9 KC |
2874 | ControlVmType = NULL; |
2875 | } | |
2876 | if (PartitionType) { | |
927c7927 | 2877 | visor_proc_DestroyType(PartitionType); |
12e364b9 KC |
2878 | PartitionType = NULL; |
2879 | } | |
2880 | if (diag_proc_dir) { | |
2881 | remove_proc_entry(VISORCHIPSET_DIAG_PROC_ENTRY_FN, ProcDir); | |
2882 | diag_proc_dir = NULL; | |
2883 | } | |
2884 | memset(&g_DiagMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2885 | ||
2886 | if (chipset_proc_dir) { | |
2887 | remove_proc_entry(VISORCHIPSET_CHIPSET_PROC_ENTRY_FN, ProcDir); | |
2888 | chipset_proc_dir = NULL; | |
2889 | } | |
2890 | memset(&g_ChipSetMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2891 | ||
2892 | if (parahotplug_proc_dir) { | |
2893 | remove_proc_entry(VISORCHIPSET_PARAHOTPLUG_PROC_ENTRY_FN, | |
2894 | ProcDir); | |
2895 | parahotplug_proc_dir = NULL; | |
2896 | } | |
2897 | ||
2898 | memset(&g_DelDumpMsgHdr, 0, sizeof(CONTROLVM_MESSAGE_HEADER)); | |
2899 | ||
2900 | proc_DeInit(); | |
2901 | if (ControlVm_channel != NULL) { | |
2902 | LOGINF("Channel %s (ControlVm) disconnected", | |
2903 | visorchannel_id(ControlVm_channel, s)); | |
2904 | visorchannel_destroy(ControlVm_channel); | |
2905 | ControlVm_channel = NULL; | |
2906 | } | |
2907 | controlvm_deinit(); | |
2908 | visorchipset_file_cleanup(); | |
2909 | POSTCODE_LINUX_2(DRIVER_EXIT_PC, POSTCODE_SEVERITY_INFO); | |
2910 | LOGINF("chipset driver unloaded"); | |
2911 | } | |
2912 | ||
2913 | module_param_named(testvnic, visorchipset_testvnic, int, S_IRUGO); | |
2914 | MODULE_PARM_DESC(visorchipset_testvnic, "1 to test vnic, using dummy VNIC connected via a loopback to a physical ethernet"); | |
2915 | int visorchipset_testvnic = 0; | |
2916 | ||
2917 | module_param_named(testvnicclient, visorchipset_testvnicclient, int, S_IRUGO); | |
2918 | MODULE_PARM_DESC(visorchipset_testvnicclient, "1 to test vnic, using real VNIC channel attached to a separate IOVM guest"); | |
2919 | int visorchipset_testvnicclient = 0; | |
2920 | ||
2921 | module_param_named(testmsg, visorchipset_testmsg, int, S_IRUGO); | |
2922 | MODULE_PARM_DESC(visorchipset_testmsg, | |
2923 | "1 to manufacture the chipset, bus, and switch messages"); | |
2924 | int visorchipset_testmsg = 0; | |
2925 | ||
2926 | module_param_named(major, visorchipset_major, int, S_IRUGO); | |
2927 | MODULE_PARM_DESC(visorchipset_major, "major device number to use for the device node"); | |
2928 | int visorchipset_major = 0; | |
2929 | ||
2930 | module_param_named(serverregwait, visorchipset_serverregwait, int, S_IRUGO); | |
2931 | MODULE_PARM_DESC(visorchipset_serverreqwait, | |
2932 | "1 to have the module wait for the visor bus to register"); | |
2933 | int visorchipset_serverregwait = 0; /* default is off */ | |
2934 | module_param_named(clientregwait, visorchipset_clientregwait, int, S_IRUGO); | |
2935 | MODULE_PARM_DESC(visorchipset_clientregwait, "1 to have the module wait for the visorclientbus to register"); | |
2936 | int visorchipset_clientregwait = 1; /* default is on */ | |
2937 | module_param_named(testteardown, visorchipset_testteardown, int, S_IRUGO); | |
2938 | MODULE_PARM_DESC(visorchipset_testteardown, | |
2939 | "1 to test teardown of the chipset, bus, and switch"); | |
2940 | int visorchipset_testteardown = 0; /* default is off */ | |
2941 | module_param_named(disable_controlvm, visorchipset_disable_controlvm, int, | |
2942 | S_IRUGO); | |
2943 | MODULE_PARM_DESC(visorchipset_disable_controlvm, | |
2944 | "1 to disable polling of controlVm channel"); | |
2945 | int visorchipset_disable_controlvm = 0; /* default is off */ | |
2946 | module_param_named(crash_kernel, visorchipset_crash_kernel, int, S_IRUGO); | |
2947 | MODULE_PARM_DESC(visorchipset_crash_kernel, | |
2948 | "1 means we are running in crash kernel"); | |
2949 | int visorchipset_crash_kernel = 0; /* default is running in non-crash kernel */ | |
2950 | module_param_named(holdchipsetready, visorchipset_holdchipsetready, | |
2951 | int, S_IRUGO); | |
2952 | MODULE_PARM_DESC(visorchipset_holdchipsetready, | |
2953 | "1 to hold response to CHIPSET_READY"); | |
2954 | int visorchipset_holdchipsetready = 0; /* default is to send CHIPSET_READY | |
2955 | * response immediately */ | |
2956 | module_init(visorchipset_init); | |
2957 | module_exit(visorchipset_exit); | |
2958 | ||
2959 | MODULE_AUTHOR("Unisys"); | |
2960 | MODULE_LICENSE("GPL"); | |
2961 | MODULE_DESCRIPTION("Supervisor chipset driver for service partition: ver " | |
2962 | VERSION); | |
2963 | MODULE_VERSION(VERSION); |